It is important to maintain a sharp knife. Having a dull knife can be dangerous and make the cutting process more difficult.
Hunting knives are no exception. A dull hunting knife blade is harder to control, makes jagged cuts, and is more dangerous because you have to use greater force to make the cut.
However, with the right hunting knife sharpener you can keep your blade in great condition!
We have compiled 10 of the best hunting knife sharpeners on the market today. Take a look at the list below to find a hunting knife sharpener that suits your needs perfectly.
The Best Hunting Knife Sharpeners
The list below contains an assortment of the best hunting knife sharpeners on the market today. You will find manual sharpeners, electric sharpeners, portable sharpeners and more.
| Knife Sharpener | Brand | Title | Buy |
|---|---|---|---|
 Top | Smith's | Smith's Arkansas TRI-HONE Sharpening Stones System | Amazon Price |
Top Top | Work Sharp | Work Sharp Guided Field Sharpener | Amazon Price |
 Top | Work Sharp | Work Sharp Knife & Tool Sharpener (Ken Onion Edition) | Amazon Price |
 Top | Work Sharp | Work Sharp - WSCMB Combo Knife Sharpener | Amazon Price |
 Top | Sharp Pebble | Sharp Pebble Premium Whetstone | Amazon Price |
 Top | Lansky | Lansky PS-MED01 BladeMedic | Amazon Price |
 Top | AccuSharp | AccuSharp Knife & Tool Sharpener | Amazon Price |
 Top | Smith's | Smith's CCD4 3-1 Field Sharpening System | Amazon Price |
 Top | Spyderco | Spyderco Tri-Angle Sharpmaker Knife Sharpener | Amazon Price |
 Top | Work Sharp | Work Sharp Precision Adjust Knife Sharpener | Amazon Price |
Owning one of these high-quality blade sharpeners will make your knife more functional for field work or cleaning game.
1. Smith’s TRI-HONE Sharpening Stones
Flexible 3-Stone Sharpening Tool
Looking for a sharpening stone that will make your knives sharper than ever?
Smith’s TRI-HONE Sharpening Stones are the perfect solution. This set includes three types of stones, so you can sharpen any knife to its optimum level.
The two Arkansas stones offer fine and medium grit sharpening. The 800 Grit Medium Synthetic Stone is great for everyday use and the 1000 Grit Fine Stone is best used when you want an extra-sharp edge. The third stone is a 300 Grit Coarse Synthetic Stone which is ideal for removing nicks or restoring edges on damaged blades.
With this sharpening set, it’s easy to find what type of sharpening stone you need. Each stone has been mounted on a rotating molded plastic triangle that makes identification simple.
Plus, there’s a built-in sharpening angle guide that ensures your knives will be at the correct angle every single time!
All these features come together to create one amazing product!
Features
Easy to Handle and Use – Smith’s TRI-HONE Sharpening Stones are super easy to use. The stones are mounted on a molded plastic triangle that makes it easy to rotate the stone and identify which stone you need.
Three Stones – Three different kinds of sharpening stones: two Arkansas stones (fine and medium), one coarse synthetic stone.
Angle Guide – Smith’s Sharpening Stones have an angle guide so you can be sure you’re sharpening your knife at the correct angle every time.
Pros
Things we like
- Partially serrated blade for aggressive cutting.
- Leather-free, synthetic handle to avoid the risk of rot.
- Firm, hand-made Kraton G handle to provide a comfortable fit.
- Easy to sharpen 1095 Cro-Van steel handle.
- Ideal for most outdoor applications.
Cons
Things that could be better
- A little heavy compared to recent utility knives.
- Lacks lanyard holes for simplistic attachment to poles.
If you’re looking for something reliable and high quality then look no further than Smith’s TRI-HONE Sharpening Stones! These sets have everything needed to keep all your knives razor sharp without breaking the bank.
2. Work Sharp Guided Field Sharpener
Feature packed field knife sharpener
The Work Sharp Guided Field Sharpener is an incredibly capable knife sharpener for use while in the field.
This knife sharpener is compact and portable, but also contains main advanced features only found on larger tools. For example, it has 5 different sharpening stations each with angle guides so you get the best edge.
The Work Sharp Field Sharpener has 2 different types of stones, 2 ceramic rods and 1 leather strop to help you get your knives back in shape.
- 2 diamond plates with 220 grit and 600 grit for shaping the edge or repairing chips.
- 2 ceramic rods with different grits or angles on each side. This includes coarse grit and fine grit. In addition, it has rods for honing serrated blades and fishing hooks.
- A leather strap conditioned with micro abrasive to finish your blades to razor sharpness.
You can use this device to sharpen any blade from an axe to a fishhook with ease. This product will help you get that perfect edge every time without having to spend hours in front of a whetstone or grinder.
Features
Blade Angle Guides – The built-in blade guides ensure that you sharpen each knife at the optimal angle.
Compact and Durable – The Work Sharp Guided Field Sharpener is lightweight and compact, yet durable enough to tackle any job in the field. Its solid construction ensures years of reliable service.
5 Grit Stages – The sharpening system includes coarse diamond, fine diamond, ceramic rods with a coarse grit on one side and a fine grit on the other, plus a leather strop with a micro-abrasive compound.
Easy to Use – Simply draw your blade through each stage until it reaches peak performance. It’s that simple!
Pros
Things we like
- Compact lightweight design
- Works in the field on any surface
- Sharpens every knife and tool imaginable, from hunting knives to serrated blades.
- Includes an Angle Guide for perfect sharpening angle
Cons
Things that could be better
- Somewhat small for knife blades over 5 inches
You’ll never have to worry about going out into the wilderness without being able to sharpen your knives or tools again! This portable device will make sure you always have an edge when you need it most!
3. Work Sharp Ken Onion Knife & Tool Sharpener
An Electric Sharpener that is the favorite of many hunters
The Work Sharp Ken Onion Knife & Tool Sharpener is one of the most advanced, versatile and effective electric knife sharpeners on the market.
One key benefit is the adjustable sharpening guide. You have maximum flexibility to create edge bevels from 15° to 30°. The bevel can be adjusted in 1 degree increments to sharpen any knife to the right angle based on your needs.
The Work Sharp Ken Onion includes five different belts of varying grit: P120 extra coarse, X65 coarse, X22 medium, X4 fine, 6000 extra fine. The primary belts are 3/4″ wide. The 6000 grit belt measures ½” wide for better contact with serrations and other hard to reach areas.
The variable speed motor (1,200 SFM to 2,800 SFM) allows you to adjust the sharpener based on the project and how much metal you need to remove. You can sharpen knives faster than ever before, and get razor-sharp convex edges in seconds without any set up or calibration time.
Features
Adjustable Angle Guide – The Adjustable Angle Guide allows you to sharpen at the optimal 15°-30° angle.
Variable Speed Motor – The Variable Speed Motor has a powerful 1,200 SFM (surface feet per minute) to 2,800 SFM variable speed control. This gives you flexibility and protects your knives from too aggressive shaping.
Fast and Precise – Electric knife sharpener with no set up or calibration. Anyone can use this sharpener.
Pros
Things we like
- Adjustable angles from 15 to 30 degrees
- 5 different belts with different abrasiveness
- Variable speed motor
- Extremely fast at sharpening
Cons
Things that could be better
- Can scratch the blade while sharpening
- Higher priced
Overall, the Work Sharp Ken Onion should be on your shortlist if you are looking for an electric hunting knife sharpener. You can sharpen knives faster than ever before, and get razor-sharp convex edges in seconds.
4. Work Sharp – WSCMB Combo Knife Sharpener
Combination power and manual sharpener
The Work Sharp Combo Knife Sharpener combines power sharpening technology with manual sharpening technology, so you can get a razor-sharp edge on any knife in just seconds.
Power sharpening is done with a ½” x 10″ premium 3M™ abrasive belt that is engineered for cool sharpening and long life.
Manual sharpening is done with a Tapered Ceramic Rod. Use these rods to hone your knife edge to razor sharpness (even serrated blades).
The power and manual sharpening areas include precision 25° angle guides. There are no more guessing games about how to get your blades razor-sharp again.
Features
Fast and Versatile – The Combo Knife Sharpener is fast and easy to use. It will sharpen any knife you own (including serrated edges) to a razor-sharp edge in minutes.
Abrasive Belts – Abrasive belts have been tested for durability and longevity, so you can be confident they will last a long time. The sharpener includes premium 3M™ abrasives (the same used by industry professionals).
Ceramic Hone – A ceramic hone with a tapered edge is included for manual honing of your blade’s edge. This hone will help you achieve an extremely sharp edge every time!
Pros
Things we like
- Takes up minimal space on a work surface for easy storage
- Automatic angle guides mean no more guess the right angle
- 3M abrasive belt will sharpen even the dullest knife in minutes
- Convenient Ceramic honing rod
Cons
Things that could be better
- Fixed 25 degree guide (not great for filet knives)
The Work Sharp Combo Knife Sharpener is a great electric sharpener for your garage or workshop. It takes up minimal space and combines the convenience of electric sharpening with the fine tuning of manual sharpening.
5. Sharp Pebble Premium Whetstone
Premium Whetstone that is simple to use.
The Sharp Pebble Premium Whetstone is a dual-sided whetstone with 1000 grit on one side and 6000 grit on the other. .
Use the 1000 grit side to sharpen the dullest knives. Use the 6000 grit side for a razor sharp finish or to touch up an already sharp knife.
You can use this stone for any blade, including pocket knives, hunting knives and axes. It’s made from aluminum oxide, which makes it durable and long lasting.
To use the whetstone, just soak it in water for twenty-five minutes before use – no oil needed! The base of the stone has a non-slip bamboo base that ensures stability while sharpening.
There is also an angle guide included so you know how to get the perfect edge every time! The angle guide attachment measures 20 degrees which is perfect for most hunting knives.
Features
Double Sided – Sharp Pebble Premium Whetstone is a double sided whetstone. 1000 grit on one side and 6000 grit on the other side.
Versatile Knife Sharpener – The sharpening stone can sharpen any type of blade (fixed blade or folding knife), scissors and tools with blades. It will give you a razor sharp edge every time!
Safe to Use – The nonslip bamboo base gives you the safety to use the whetstone without worrying about it slipping during the sharpening process. The angle guide helps you to maintain the correct sharpening angle while using this product.
Premium Quality – Made from high quality aluminum oxide(corundum) material, which makes it durable for long term use. It’s safe and easy to use!
Pros
Things we like
- Water only – no messy oils
- Double sided with a 1000/6000 grit combination
- 20 Degree angle guide makes it easy to get the right angle
Cons
Things that could be better
- Time consuming process
- Somewhat messy
Overall, the Sharp Pebble Whetstone is a versatile, easy to use knife sharpener that will restore your blade to razor-like quality. This is a great choice for traditionalists who enjoy sharpening their blades the old-fashioned way.
6. Lansky PS-MED01 BladeMedic
Portable pack knife sharpener for in field repairs.
With this handy little gadget, you’ll never have to worry about dull blades again!
Throw this knife sharpener in your pack and always be prepared. The Lansky BladeMedic can sharpen knives and repair damaged blades when you need it most.
You can use it on standard knives, gut hooks, fillet knives or even serrated blades. No matter what type of blade you need to sharpen, the Lansky PS-MED01 BladeMedic will do the job quickly and easily.
The Lanksy BladeMedic features a tungsten carbide sharpener, ceramic rods (1000 grit), serrated knife sharpener, and diamond tapered rod (600 grit). This compact device can sharpen any blade in seconds with minimal effort.
Features
Portable & Versatile – Compact design allows you to take it anywhere you go. Even use the lanyard hole to attach it to your pack or belt loop for ease of use while out in the field.
4 in 1 Knife Sharpener – It is a 4-in-1 tool that includes a tungsten carbide sharpener, ceramic sharpening rods (1000 grit), serrated knife sharpener, and diamond tapered rod (600 grit).
Pros
Things we like
- Sharpens all types of blades, including fillet knives
- Great for field repairs
- Low price and great value
- Always be prepared
Cons
Things that could be better
- Good for light duty sharpening only
The Lansky BladeMedic is a compact knife sharpener that fits easily in your pocket or tackle box so you can take it anywhere you go. It’s perfect for hunters who want to always keep their hunting tools at peak performance!
7. AccuSharp Knife & Tool Sharpener
Portable sharpener for all your camp tools
The AccuSharp Knife & Tool Sharpener is the perfect tool for sharpening knives, cleavers, axes, machetes and many other cutting tools at your campsite.
It’s easy to use and in about 10 seconds your blade will be as good as new!
While small, this sharpener is still safe. It includes a full length guard to protect your fingers in case the knife slips.
The primary sharpener is a reversible Diamond Honed Tungsten Carbide blade. Full the knife through gently as it takes off quite a bit of metal each pull. However, if you use it correctly, it will quickly put a like-new edge on your blade.
This little sharpener can withstand the elements of your trip. It won’t rust and you can easily clean up any dirt or mud it collects with simple soap and water.
Features
Full Length Finger Guard – Protects fingers while sharpening blades.
Quick and Easy – In about 10 seconds you can sharpen knives, axes and every other single-edge blade you own.
Reversible Blade – Diamond-honed tungsten carbide blade is reversible for extra long life.
Long Lasting – Will not rust and can be cleaned with soap & water or washed in a dishwasher. Also includes a lifetime warranty.
Pros
Things we like
- Quick and simple sharpening of all blades
- Finger guard for protection
- Perfect for the campsite
- Extremely low price
Cons
Things that could be better
- Aggressive metal removal
For the price, everyone should have an AccuSharp Knife and Tool Sharpener in their toolbox. It is the easiest way to keep all of your knives and tools sharp and ready to go.
8. Smith’s 3 in 1 Field Sharpening System
Portable field knife sharpener with three sharpening stones.
The Smith’s 3 in 1 Field Sharpener features pre-aligned carbides, 750 grit interrupted surface diamond sharpeners, and pre-aligned ceramic sharpeners that will help restore your blade to its original sharpness.
This is a smaller sharpener that is primarily meant for field work. The ceramic sharpening rods actually store in the base of the unit so you can take them anywhere with ease.
This manual knife sharpener has preset angles that guarantee an accurate edge every time. The carbides and the ceramic sharpeners both deliver a 25 degree angle edge.
Features
Portable – The compact design allows you to take it anywhere. This is an advanced sharpening system in a portable package.
3 Sharpeners – Features a carbide pre-set sharpener, an interrupted surface diamond sharpener, and ceramic sharpeners that are preset at the correct angle for standard or serrated blades.
Easy to Use – The preset sharpening angles ensure your knives will be as sharp as new every time you use them. It even works on fish hooks!
Pros
Things we like
- Portable (rods store in the base)
- Preset 25 degree angle
- Works with serrated blades
Cons
Things that could be better
- Short ceramic rods makes it harder to use with longer knives
The Smith’s 3 in 1 Field Sharpening System is perfect for hunters, fishermen or anyone who enjoys cooking outdoors. This is a great portable knife sharpener with features or more advanced sharpeners.
9. Spyderco Tri-Angle Sharpmaker
Portable rod style sharpening tool
The Tri-Angle Sharpener is perfect for sharpening any type of knife, from kitchen cutlery to hunting and fishing knives.
It includes two sets of high alumina ceramic stones – one set for aggressive sharpening and another set for finishing. It also includes brass safety rods to protect your hands while you sharpen.
You can set the sharpening angle at 30 degrees (15 degrees on each side) or 40 degrees (20 degrees on each side). This is a great feature for a portable device!
If you want more versatility, just lay two stones side-by-side for use as a bench stone. These stones should be used dry (no oil, water or lubricants needed), which is very convenient for field work.
Finally, everything packs and stores nicely into the ABS plastic base, making this one of the best portable knife sharpeners available.
Features
Easy to Use – Sharpen knives, tools, and other equipment quickly and easily. The user can sharpen blades at a 30-degree or 40-degree angle in just seconds. No water or oil is needed!
Portable – No need to lug around bulky sharpening stones when you can have two sets of high alumina ceramic stones that snap into place inside the self-contained ABS plastic base and lid. Take them anywhere you go!
2 Stone Sets – Includes two sets of stones at different grits. This sharpener can do anything from a quick touch up to an in-depth shaping session. The medium-grit set is perfect for getting your blades back into shape after heavy use or less than ideal storage conditions. The fine grit stone set will give you that polished finish every blade deserves with minimal effort.
Pros
Things we like
- Multiple stones for various uses
- Additional stone grits available for purchase
- 30 degree and 40 degree angle guides
Cons
Things that could be better
- A little pricey
The Spyderco Tri-Angle is an incredibly capable sharpener that gives you multiple grits and angle options to sharpen your knives. Plus, it’s small enough to take anywhere so you’ll always have it when you need it most.
10. Work Sharp Precision Adjust Knife Sharpener
Precise angle guided system for manual knife sharpening.
If you are looking for quality and precision, then the Work Sharp Precision Adjust Knife Sharpener is the one for you.
Precision and consistency are the two things you will experience with this knife sharpener. It includes three abrasive grits and the rod can be adjusted to multiple angles to handle your various knives.
The Work Sharp Precision Adjust has two diamond plates and a fine grit ceramic stone in the middle. One of my favorite features is the adjustable angle guide which allows it to sharpen any blade from 15°-30°. You can quickly restore an edge on your knife by simply sliding the diamond plates back and forth across the blade for just a few minutes at most.
Additionally, the Work Sharp Precision Adjust is designed with an innovative clamp that secures the blade at any angle. The knife clamp and angle guide ensure a consistent quality sharpening stroke with the plates.
The Work Sharp Precision Adjust is also safe. The sharpening base will hold your knife securely in place while you sharpen or hone it to perfection.
Features
Adjustable – Sharpening Angle can be easily adjusted from 15° to 30° in 1° increments to get the perfect angle for all your knives.
Tri-Brasive – Includes coarse 320 and fine 600 grit diamond plates for sharpening and a ceramic stone that ensures you’re able to hone the keenest edge.
Safe – Clamp is strong and safely secures the knife to the sturdy base.
Pros
Things we like
- Amazingly precise and consistent
- Easy to use design that guides you
- Adjustable angles to fit any knife
- Just feels high quality
Cons
Things that could be better
- Small abrasives that are not cheap to replace
Overall, the Work Sharp Precision Adjust knife sharpener is a great tool for people that value quality and precision. If you want a benchtop knife sharpener then this is a product you should check out.
What to Look for in a Hunting Knife Sharpener
When looking for a knife sharpener, it helps to understand how a knife achieves a sharp blade.
Sharpening
A knife sharpener uses a combination of abrasives to remove metal from the blade so that it can be reshaped into an edge.
The angle at which this is done will determine how much material each side removes, and you should choose your angles accordingly if they’re for chopping or slicing needs (chopping usually requires more acute edges).
The size of your knife also impacts your needs – very small knives need less aggressive sharpeners than large ones like those found on hunting trips!
Honing
After you sharpen a knife’s edge, you typically refine in by honing. Honing is typically done on a less aggressive ceramic stone.
Honing also removes metal but not as much of what was removed during sharpening – this is why you’ll need both processes!
Honing rods are used more often than sharpeners for day-to-day use if your knife already has a good edge.
Types of Knife Sharpeners
There are several types of knife sharpeners to choose from including: electric, handheld (pull through), sharpening stones, sharpening systems/guides, and honing rods.
Electric Knife Sharpeners
Electric knife sharpeners are a great investment for hunters that have an assortment of knives they need to sharpen. They’re fast and easy, meaning you’ll be done in no time!
Additionally, electric knife sharpeners can give your blade more precision than the typical handheld sharpener. They are perfect if you don’t know much about sharpening and honing blades yourself.
The downside is that these types of devices require power sources so you will likely have to purchase another portable sharpener to use in the field.
Pull Through Knife Sharpeners
Pull Through sharpeners work by making contact with the blade on one side and pulling it through a set of abrasive wheels to sharpen.
The upside is that they are easy for beginners or those without much experience in sharpening knives. They also typically come equipped with an adjustable angle guide which gives some added precision.
Manual Pull Through sharpeners are great for hunters that only have a of couple knives they need to maintain. They are also good if you have high-end hunting blades because it can save the blade from being damaged. Electric and less expensive sharpeners can be too aggressive in removing metal from your blade.
Since pull through models don’t work as quickly when compared with electric devices these types may not suit everyone’s needs. However, people who do use them typically end up preferring the old school approach
Sharpening Stones
Sharpening Stones are an old standby for hunting knife enthusiasts.
They are easy to use and don’t require any type of power source making them a great choice when you’re in the middle-of wilderness or camping out with friends.
The downside is that they can be difficult to use because it takes time, effort (and sometimes water or oil) to get good results from using these types.
For people who enjoy this process, there’s nothing better than standing at your bench while sharpening knives on stones. Once you learn to use them appropriately, sharpening stones give you one of the best edges possible on your hunting knife.
Knife Sharpening Systems and Guides
Knife sharpening systems and guides are for the enthusiast that enjoys the knife sharpening process and takes pride in their finely honed edge.
The systems typically include a way to clamp or hold the knife in a fixed position with the blade exposed. Arms with sharpening stones attached are then inserted into your desired angle guides and passed over the blade to sharpen.
Some systems contain one arm and only allow you to sharpen one side of the knife at a time. Others include two arms and sharpening stones to handle both sides of the knife on every pass.
Knife sharpening systems also include various stone grits that can be placed on the arms. This allows you to work your way from low grit sharpeners to high grit honing stones for the perfect edge.
Honing Rods or Sharpening Steels
Honing Rods are used to maintain razor sharpness on knives that already have a good blade. They are also a good way to refine your blade after using another type of knife sharpener.
Your knife sharpener should include some honing rods or stones to complete your knife sharpening process.
However, if it doesn’t then you should definitely add some stand-alone rods so you can get that perfect blade.
Manual vs Electric Knife Sharpeners
Manual sharpeners are a classic and easy option. Electric knife sharpeners are appreciated for their speed and ease of use.
When deciding between a manual or electric knife sharpener, you should consider the following:
- Cost – Manual sharpeners are less expensive but require more time and skill to use. Electric knife sharpener prices vary greatly depending on your needs (and how much money you have).
- Portability – Manual knife sharpeners come in all shapes and sizes including sharpeners that you can throw in your hunting pack. Electric knife sharpeners require power and usually have to stay back at home.
- Precision – Electric knife sharpeners are great for sharpening blunt knives quickly. However, sharpening stones and knife sharpening systems provide a more precise and controlled process.
What to Look for in a Hunting Knife Sharpener
There are three primary features to consider when finding the best hunting knife sharpener for your situation: Size, Grit and Angle.
Size
The size of the knife sharpener really comes down to where you need to use it. I like to keep a small manual sharpener in my hunting pack at all times. It’s good to have a nicer field sharpening system to leave at camp.
Grit
The best sharpeners will have multiple grits so you can choose the right grit for the condition of your knife. Some sharpeners have coarse, fine and other grit options, which is perfect for creating a finely honed blade. Others only have one level of coarseness available, which are best used for field repairs and sharpening.
Angle
The type of knife you are sharpening determines the best angle to use. Sharpeners with variable or multiple angle guides will give you the most options to sharpen all your tools.
Typical sharpening angles are listed below:
- 15 to 20 Degrees – Perfect for filet knives and razor knives used skinning.
- 20 to 30 Degrees – The ideal angle for most hunting knives that will be cutting through bone.
- Over 30 Degrees – Usually found on axes and hatchets.
Frequently Asked Questions about Knife Sharpening
Do knife sharpeners ruin hunting knives?
No! Knife sharpeners are designed for the purpose of making knives sharper and more durable. A properly sharpened knife will extend the life of your knife. A lot can go wrong with a knife if you try to use it when it’s dull. This includes cutting your fingers on jagged edges or chipping away at chunks in order to finish off an animal carcass.
What is the sharpest knife angle?
This can vary depending on what type of knife edge you are sharpening. In general, a 20 degrees angle should be able to cut through most materials without too much difficulty. Filet knives and other razor knives typically have 15 degree angle blades.
What is the best method for sharpening knives?
There are a number of ways to sharpen knives. The most common is an electric knife sharpener that you can find in many hunting and sporting goods stores. Manual sharpeners will give you a better edge, but they take some practice to develop the necessary skills to get that perfect edge.
Our Recommendation – Best Hunting Knife Sharpener
The best hunting knife sharpener doesn’t exist! At least one that is perfect for every situation.
I actually recommend having two sharpeners: one nicer knife sharpener to keep at home and one portable sharpener to keep with you in the field.
One for the Home
An electric or manual knife sharpening system at home will give you the sharpest blades while maintaining the longevity of your knives. These tools allow you to prepare your knives to a perfect edge well before you head into the field.
For this, I recommend the Work Sharp Ken Onion Knife & Tool Sharpener. It will not only keep your hunting knives sharp, but it will also help you with every other blade around the house (including lawnmower blades). This is the best electric hunting knife sharpener.
One for the Field
You need to be prepared for quick tune-ups or repairs of your knives in the field. Having a tool that can sharpen other blades such as axes also comes in handy.
For this, I recommend the Work Sharp Guided Field Sharpener. This is my favorite hunting knife sharpener of all due to its capability and flexibility.