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In Brief: Best Drill Bit Sharpener

  1. Drill Doctor 750X
  2. Drill Doctor 500x
  3. Drill Doctor 350X
  4. General Tools 825
  5. Woodstock D4144
  6. DAREX Drill Bit Sharpener – Model : V390 
How We Decided

14 products considered. 200+ reviews analyzed, 27 research hours spent, 10+ info. sources referred

More about our Methodology

Drill bits dulling quickly can significantly increase your operating costs if you don’t have a way of reusing them.

To solve this problem, and to help convert your stash of saved-up dull bits into useable tools again, drill bit sharpeners are the go-to choice.

Check out this list of the 6 best drill bit sharpeners to find a model that you can use to get all your bits back in working condition again.

Comparison Table: Top Drill Bit Sharpeners

Here is a quick comparison table of good drill sharpeners available in the market today – 

Product Drill bit Range Price

Drill Doctor 750X

Drill Doctor - DD750X 750X Drill Bit Sharpener for High-Speed Steel, Masonry, Carbide, Cobalt, & TiN-coated Drill Bits, with Adjustable Angles from 115° to 140°, Sharpens 3/32in – 3/4in Drill Bits gray/black

3/32-inch to ¾-inch Check Price

Drill Doctor 500x

Drill Bit Sharpener, 118 Or 135 Deg

3/32-inch to ½-inch Check Price

Drill Doctor 350X

Drill Doctor DD350X 350X Drill Bit Sharpener

3/32-inch to ½-inch Check Price

General Tools 825

General Tools 825 Drill Grinding Attachment

1/8-inch to ¾-inch Check Price

Woodstock D4144

Woodstock D4144 Drill Sharpener

1/8-inch to ¾-inch Check Price

DAREX Drill Bit Sharpener - Model : V390 

1/8-inch and ¾-inch Check Price

Review of Best Drill Bit Sharpeners

Drill Doctor 750X

Drill Doctor - DD750X 750X Drill Bit Sharpener for High-Speed Steel, Masonry, Carbide, Cobalt, & TiN-coated Drill Bits, with Adjustable Angles from 115° to 140°, Sharpens 3/32in – 3/4in Drill Bits gray/black

This versatile drill bit sharpener by Drill Doctor can work with a broad range of drill bits. It can sharpen bits from 3/32-inch to ¾-inch and is capable of working with English, metric, and letter-gauge bits with no problem.

Most standard angles also work with this sharpener as it can sharpen angles between 115 to 140 degrees so your 135-degree split-point tips are covered.

It utilizes an industrial-strength diamond sharpening wheel which lets it work on materials as hard as carbide and cobalt along with high-speed steel and masonry bits.

It has long jaws for sharpening that hold the bit precisely in place to eliminate any chances of error so that the integrity and specific geometry of your bits are maintained.

Another useful design feature is its variable material take-off which lets you decide the amount of bit material that is removed.

This lets you accommodate both large, broken bits as well as helping you make minor adjustments to smaller precision tools.

It can sharped angled cutting edges and even restore the edge on broken bits with the additional capability of adding a unique back-cut split point for an extra-narrow tip for greater efficiency.

The push-to-stop drill point splitting port design means that you’ll never be in danger of over-splitting the tip.

Apart from its numerous features, it has a very durable construction with a metal split-point port, a die-cast point angle shuttle, and a permanent magnet motor for consistent power.

It comes in a durable hard-shell carrying case to transport it safely to job sites.

You can watch a user-uploaded video on how to use it here:


  • Accepts a wide range of materials, sizes, and angles
  • Works consistently
  • Durable build
  • Adjustable material take-off for a variety of sizes
  • Minimal errors
  • There’s a bit of a learning curve when you first start using it
  • Some users have experienced issues with sharpening split point bits
  • Noisy

Check Reviews & Price on Amazon

Drill Doctor 500x

Drill Bit Sharpener, 118 Or 135 Deg

This sharpener by Drill Doctor can help restore standard twist and masonry bits from 3/32-inch to ½-inch to working condition once more.

It uses an easy-to-replace diamond sharpening wheel that can sharpen carbide, cobalt, high-speed steel, black oxide, TiN-coated bits and more.

It can sharpen standard 118-degree points as well as 135-degree split-point tips and is even able to create split point bits on regular bits if you want.

A push-to-stop drill point splitting port ensures that you don’t over-split the bit point while doing this.

It also uses longer than usual chuck jaws which hold bits more precisely and eliminate jaw twisting so that your bits aren’t harmed.

The build is fairly durable, with a metal split-point port and cast aluminum angle shuttle for added sturdiness.

Like other Drill Doctor sharpeners, this model also utilizes a permanent magnet motor which gives consistent power regardless of speed or load.

  • Very effective
  • Can add a split-point to regular bits
  • Works very fast
  • Sturdy, durable build
  • Has a bit of a learning curve

Check Reviews & Price on Amazon

Drill Doctor 350X

Drill Doctor DD350X 350X Drill Bit Sharpener

Built for home workshops, the Drill Doctor 350X can sharpen standard twist drill bits from 3/32-inch to ½-inch.

It uses an easily replaceable diamond sharpening wheel which is capable of sharpening not just regular high-speed steel and black oxide bits but also harder ones such as masonry bits, carbide tips, and cobalt bits.

It sharpens bits to a 118-degree point angle and utilizes an on-check alignment system which significantly simplifies the sharpening process.

The V-Block chuck jaws eliminate jaw twisting on smaller bits and help preserve their integrity.

The sharpener runs on a permanent magnet motor which gives you consistent power and performance regardless of the speed or load for reliable use.

You can watch it being demonstrated here:


  • Compatible with many materials
  • Works effectively and as advertised
  • Quick and efficient to use
  • Takes a while to learn how to use effectively
  • Some users experienced a lopsided grind with their models

Check Reviews & Price on Amazon

General Tools 825

General Tools 825 Drill Grinding Attachment

This model by General Tools isn’t a stand-alone drill sharpener but is an attachment that is intended for use with ANSI, OSHA, and UL-approved standard electric bench or surface grinders.

It works with 1/8-inch to ¾-inch bits and can be used with numbered, alphabet-gauge, and metric drill bits from 3 to 19mm as well.

The design includes a pivoting neck which simplifies the grinding process on both sides of the bits.

It has an angle adjustment gauge which allows you to precisely match the point angle of almost any bit which is a feature which also works on countersinks.

To correctly translate the overhang requirement to the correct point angle for the bit material, the attachment comes with a helpful table. It also automatically adjusts to the correct clearance angle when you start using it.

You can watch it being put to the test here:


  • Easy to set up
  • Works very quickly
  • Particularly good for large bits
  • Inexpensive, especially when compared to competing options
  • The build is slightly low-quality
  • The instruction sheet is photocopied and illegible

Check Reviews & Price on Amazon

Woodstock D4144

Woodstock D4144 Drill Sharpener

This is a drill sharpener attachment by Woodstock which is meant to be installed next to a bench grinder or workbench. It is capable of sharpening drill bits ranging from 1/8-inch to ¾-inch in size quickly and efficiently.

It has an adjustable design that makes it compatible with a number of drill-point angles for optimum accuracy.

  • Durable and long-lasting
  • High-quality construction and build
  • Hard to use in the beginning
  • Difficult to align properly

Check Reviews & Price on Amazon

DAREX Drill Bit Sharpener – Model: V390

This is a more light-duty drill bit sharpener by Darex which is capable of taking on between 35 to 50 bits per week. It accepts bits with a diameter between 1/8-inch and ¾-inch or between 3 and 19mm and uses a Borazon wheel.

This wheel enables it to work with angles between 118 and 140 degrees and makes it compatible with standard conic points and split points.

While the Borazon wheel can cut high-speed steel and cobalt drill bits, an optional diamond wheel can also be purchased to make this sharpener compatible with carbide drill bits as well.

You can watch a video on how to use it here:


  • Compatible with a wide range of angles
  • Gives very sharp edges
  • Easy to use
  • Very expensive
  • Not heavy-duty enough for the price

Check Reviews & Price on Amazon

If you own and work with a drill, then a drill bit sharpener is an essential tool to add to your workbench. Sharpening your drill bits will allow for sharper cuts, and a longer lifespan for the drill bit itself.

Whether you are a professional, or you are a hobbyist with projects around the house, you can use a drill bit sharpener to extend the life and precision of your drill bits.

This article will go over the best drill bit sharpeners on the market to help you determine which one will work best for you and your price point.

Buyer’s Guide

Woodstock D4144 Drill Sharpener In this section, we will define what a drill bit sharpener is, what it is used for, and what kind of buyer you are. Knowing what type of customer you are is the best way to figure out what kind of product you need for the work that you do.

What is a Drill Bit Sharpener?

A drill sharpener is a tool that you use with your drill bits that keep them sharp and precise. This tool allows drill bits to last longer and have more precise, clean cuts. A drill bit sharpener makes the edges smooth and even for use.

Why use a Drill Bit Sharpener?

The use of a good drill bit sharpener extends the life of the drill bit by making it sharper, and more precise. This allows the drill bit to slice through material fast and easy so that there is less work on the drill bit to do the job. This also allows for crisper, cleaner cuts that will a duller drill bit that is not sharpened.

What Kind of Buyer are You?

If you don’t know what kind of customer you are, then it can be difficult to sift through all the options out there because you don’t know what you need. Knowing what kind of buyer you are can help you find a drill bit sharpener that will work best for you, and your price point.

You may not want the sturdiest and most complicated tool if you will not make use of all its features, so you can go for something simpler and cheaper.

I am a professional or independent contractor…

If you are need of a drill bit sharpener for professional use, then you want something that is build to last, and can handle any job.

A heavy-duty option with a higher price point may be worth the long life and versatility that a hobbyist wouldn’t put to good use. Something that is built to withstand more may be the best option for you.

I am a hobbyist or DIYer…

If you need something that will get the job done without costing a small fortune, then something simpler and cheaper may work better for you.

You won’t need something that is made for constant use if you won’t be using it often, you can go with a basic model without all the bells and whistles since you likely won’t need to put them to good use.


Drill bit sharpeners make life much easier than manually grinding down your bits to sharp points after they’ve dulled.

This list gives you the most popular sharpener models available online to make your work easier and help you cut costs for more efficient and inexpensive performance.

Here is the list of our top picks again for you. Check out the specs, customer reviews, price and offers on Amazon –

Last update on 2022-12-01 / Affiliate links / Images from Amazon Product Advertising API

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Our team consists of enthusiastic and passionate people from different fields and experience. Some are geeks and spend most of their time among gadgets while others love nature and are always on the move! We spend 10s of hours researching and writing on each topic. The articles are then quality checked by our editors. View our "About us" section for more details about process and team.

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