8 Bench Grinders That Keep Drill Bits Razor Sharp (No Fuss)

A dull drill bit is like a broken promise it just won’t deliver. But you don’t need a blacksmith’s anvil to fix that. These eight bench grinders transform your workshop into a sharpening station, turning tedious maintenance into a quick, satisfying task. Ready to reclaim your cutting edge?

More Details on Our Top Picks

1. General Tools Drill Grinding Attachment #825

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   Best Overall

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   This attachment is for anyone who wants to keep their bits sharp without a dedicated drill grinder. You’ll mount it on your existing bench or surface grinder, and the pivoting neck lets you hone evenly, restoring that factory edge. It handles common angles like 88, 68, 59, 49, and 41 degrees, so you’re covered for most twist drills. The overhang table translates length into the correct point angle, taking the guesswork out of setup. You get a non-marking depth stop-cap, which protects your workpiece, and the vice clamp locks down quick without damaging the bit. Built from chrome vanadium steel, it’s sturdy yet portable at about 5 inches square. For woodworking or home projects, this is a solid, fuss-free upgrade.

   • Number of Guides/Angles:5 standard angles (88°, 68°, 59°, 49°, 41°)
   • Material:Chrome vanadium steel and high carbon steel
   • Weight:9.07 grams (0.32 oz)
   • Dimensions (L x W x H in inches):4.91 x 4.91 x 7.38
   • Mounting/Attachment Type:Vice clamp (attaches to bench grinder)
   • Compatibility/Application:ANSI/OSHA/UL-approved bench or surface grinders
   • Additional Feature:Pivoting neck for even sharpening
   • Additional Feature:Non-marking depth stop-cap
   • Additional Feature:Supports multiple standard angles

2. 118 Degree Drill Bit Sharpener for Bench Grinder

   [zw asin=”B0H2YV35RD” alt=”118 Degree Drill Bit Sharpener for Bench Grinder”]

   Budget-Friendly Pick

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   Dull bits ruin your rhythm. You don’t need a new bit; you need the 118 Degree Drill Bit Sharpener for your bench grinder. It mounts easily on Craftsman Professional 8 inch models, and it’s made from tough PETG that shrugs off vibration. This attachment restores that critical cutting angle, so you get clean, fast drilling again.

   Here’s what you get:

   • An axial clamp screw that locks bits tight, no wobble allowed.
   • Consistent sharpening that extends your bit’s life.
   • Weighs just 8 ounces, so it won’t bog down your grinder.

   Grab it through Amazon with a 30 day return guarantee.

   • Number of Guides/Angles:Single angle (118°)
   • Material:PETG plastic
   • Weight:8 ounces
   • Dimensions (L x W x H in inches):2 x 2 x 1 (packaged)
   • Mounting/Attachment Type:Axial clamp screw (mounts on grinder)
   • Compatibility/Application:Craftsman Professional 8-inch bench grinders
   • Additional Feature:Axial clamp screw prevents wobble
   • Additional Feature:Third-party replacement part
   • Additional Feature:PETG vibration-resistant material

3. 3 Pack Drill Bit Sharpener Guide Jig

   [zw asin=”B0FMS68NFW” alt=”3 Pack Drill Bit Sharpener Guide Jig”]

   Best Value

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   If you often restore dull bits on a bench grinder, this 3 pack sharpener guide jig offers substantial value for its price. You’re getting three identical PLA tools, each with three preset angles: 90°, 118°, and 135°. That covers your standard masonry, twist, and multi-purpose bits without guesswork. Just clamp the bit in, hold the jig against your grinder’s tool rest, and rock it evenly. You’ll feel when the cutting edge meets the wheel, and the guide keeps your angle honest. Each unit measures 4 x 1.3 x 0.7 inches, weighs a mere 1.44 ounces, so they’re easy to handle. And since they’re green, you won’t misplace them on a cluttered bench. Just remember, this is manual, so you control the pressure. Take your time, and you’ll extend bit life considerably. It’s a simple, effective system, backed by a 30-day return window if it doesn’t fit your workflow.

   • Number of Guides/Angles:3 angles (90°, 118°, 135°)
   • Material:PLA (3D printed)
   • Weight:1.44 ounces
   • Dimensions (L x W x H in inches):4 x 1.3 x 0.7
   • Mounting/Attachment Type:Manual hand-held guide jig
   • Compatibility/Application:Most bench grinders
   • Additional Feature:Three adjustable angle settings
   • Additional Feature:Manual hand-powered operation
   • Additional Feature:Lightweight PLA construction

4. Molain 6 Pcs Drill Bit Sharpening Guide Jig Sharpener for Bench Grinder

   [zw asin=”B0GR9C5698″ alt=”Molain 6 Pcs Drill Bit Sharpening Guide Jig Sharpener for Bench Grinder”]

   Most Versatile

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   With six angle guides (90°, 118°, and 135°), this set is the most versatile choice for anyone who sharpens a variety of twist bits. You get two guides per angle, made from tough, lightweight ABS that won’t wobble during grinding. That means symmetrical points every time, with less walking and cleaner holes.

   • Angle Options: 90°, 118°, and 135° – two of each.
   • Build: High-quality ABS resists grinding debris.
   • Compatibility: Works with most dry or wet bench grinders, no special attachments needed.
   • Weight: Just 3.13 ounces, so it’s easy to handle.

   Just choose your angle, align it with the wheel, and guide the bit through. It’s that simple. And your bits will thank you with longer life.

   • Number of Guides/Angles:3 angles (90°, 118°, 135°) with 2 guides each
   • Material:ABS plastic
   • Weight:3.13 ounces
   • Dimensions (L x W x H in inches):4 x 1.2 x 0.6
   • Mounting/Attachment Type:Manual hand-held guide jig
   • Compatibility/Application:Most standard bench grinders (dry or wet)
   • Additional Feature:Two guides per angle included
   • Additional Feature:Works on wet/dry grinders
   • Additional Feature:Prevents wobble during sharpening

5. Amaxiu 6 Pcs Drill Bit Sharpening Guide Jig 90 118 135 Degree Angles

   [zw asin=”B0H7XHD87X” alt=”Amaxiu 6 Pcs Drill Bit Sharpening Guide Jig 90 118 135 Degree Angles”]

   Wide Compatibility

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   This sharpening guide set is your best bet if you own a bench grinder, plain and simple. You get six jigs covering 90°, 118°, and 135° angles, two of each. That handles high-speed steel, cobalt, and masonry bits up to 50mm. They’re built from tough ABS plastic, so they won’t crack on you, and the bright orange color means you won’t lose them in a messy shop. You’ll use them as both a gauge and a guide, eliminating wobble for symmetrical edges. It’s a cost effective way to restore dull bits without buying a dedicated sharpener.

   • Number of Guides/Angles:3 angles (90°, 118°, 135°) with 2 guides each
   • Material:ABS plastic
   • Weight:3.28 ounces
   • Dimensions (L x W x H in inches):4 x 1.2 x 0.6
   • Mounting/Attachment Type:Manual hand-held guide jig
   • Compatibility/Application:Most bench grinders, bits up to 50mm
   • Additional Feature:Handles bits up to 50mm
   • Additional Feature:Accommodates cobalt/masonry bits
   • Additional Feature:Bright orange for visibility

6. Drill Bit Sharpener Guide Jig for Bench Grinder

   [zw asin=”B0H2HNY611″ alt=”Drill Bit Sharpener Guide Jig for Bench Grinder”]

   Beginner-Friendly

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   You’re after a simple way to sharpen your own drill bits without a steep learning curve, so the 3 piece drill bit sharpener guide jig is your best match. It holds bits at three angles: 90°, 118°, and 135°. Just align the guide on your bench grinder, drop in the bit, and manually sharpen. No power source needed, giving you full control. It’s lightweight at 0.32 ounces and fits most grinders.

   • Works with twist, masonry, and specialty bits.
   • Guarantees consistent, even grinds.
   • Extends bit life without wasting material.

   Get precise results every time, even if you’re a beginner. That’s practical and affordable!

   • Number of Guides/Angles:3 angles (90°, 118°, 135°)
   • Material:Not specified
   • Weight:0.32 ounces
   • Dimensions (L x W x H in inches):0.39 x 0.39 x 0.39
   • Mounting/Attachment Type:Manual hand-held guide jig
   • Compatibility/Application:Most bench grinders and grinding machines
   • Additional Feature:No power source needed
   • Additional Feature:Compact 0.39-inch size
   • Additional Feature:Manual full control operation

7. Drill Bit Sharpening Jig Kit for Woodworking

   [zw asin=”B0H2PX8Z6H” alt=”Drill Bit Sharpening Jig Kit for Woodworking”]

   Professional Grade

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   Wondering who needs a 9-piece sharpening jig that turns a bench grinder into a precision tool? You do, especially if you’re tired of dull bits ruining your woodworking flow.

   This Huwndko kit includes three angle guides for common workshop scenarios. You’ll align each bit manually, lock it in, and grind with consistent geometry every time. No guesswork, no wasted material.

   It’s built tough for repeated use, so both pros and DIYers get dependable results. Use it for quick emergency sharpening midproject or as part of your regular maintenance routine. You’ll boost drilling efficiency and extend your bit’s life remarkably.

   • Number of Guides/Angles:3 angles (90°, 118°, 135°) with 3 guides each
   • Material:Not specified
   • Weight:Not specified
   • Dimensions (L x W x H in inches):3.54 x 3.54 x 0.16
   • Mounting/Attachment Type:Manual alignment system
   • Compatibility/Application:Standard bench grinders
   • Additional Feature:Nine-piece complete kit
   • Additional Feature:Quick emergency sharpening setup
   • Additional Feature:Supports workshop technicians

8. 3Pcs Drill Bit Sharpener Guide Jig for Bench Grinder

   [zw asin=”B0GXK7CSX2″ alt=”3Pcs Drill Bit Sharpener Guide Jig for Bench Grinder”]

   Best For DIYers

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   If you’re a DIYer who regularly dulls bits in metal or wood, the 3Pcs Drill Bit Sharpener Guide Jig for Bench Grinder is your go-to solution. It’s crafted from durable PLA, so it’s tough enough for long term use yet lightweight at just 0.32 ounces. You get three fixed angles: 90°, 118°, and 135°. That means you can sharpen multiple bit sizes and even woodworking chisels without guesswork. Setup’s simple: clamp your bit, pick an angle, and grind. No professional skills needed. The result is consistent, accurate sharpening that restores worn bits to original sharpness, boosting their lifespan and your drilling performance. Plus, you’re backed by a 30 day return policy and warranty.

   • Number of Guides/Angles:3 angles (90°, 118°, 135°)
   • Material:PLA
   • Weight:0.32 ounces
   • Dimensions (L x W x H in inches):Not specified
   • Mounting/Attachment Type:Manual hand-held guide jig
   • Compatibility/Application:Most bench grinders
   • Additional Feature:Sharpens woodworking chisels too
   • Additional Feature:No professional skills required
   • Additional Feature:Clear instruction provided

Factors to Consider When Choosing a Bench Grinder for Sharpening Drill Bits

When you’re choosing a bench grinder for sharpening drill bits, you’ll want to focus on a few key specs. Your motor power rating needs to be high enough to handle hardened steel without stalling, and the wheel size and type should match the bits you sharpen most often. And don’t overlook variable speed control, arbor size compatibility, and overall durability, as these factors make a big difference in long-term performance.

Motor Power Rating

A motor’s power rating is your first clue to how well a bench grinder will handle drill bit sharpening. You’ll want at least 1/2 horsepower for heavy duty tasks. This keeps the motor from overheating or stalling when you’re working on larger or harder bits. Without enough power, you’ll face slower sharpening and more fatigue, which kills your productivity. A powerful motor maintains stable speed, helping you hit those precise drill bit angles every time. But don’t just grab the biggest number you see. Balance the power with the grinder’s design and your actual needs. You don’t want to waste energy on unnecessary consumption. For consistent, efficient sharpening without the fuss, aim for that 1/2 HP sweet spot. It’s the reliable workhorse for your shop.

Wheel Size & Type

Now that you’ve got motor power figured out, let’s talk about what actually touches the bit: the wheel size and type. The wheel size sets your maximum drill bit diameter: an 8 inch wheel handles bigger bits than a 6 incher, while a 10 inch provides more surface area for faster, more uniform sharpening.

Choose your wheel type based on material. Silicon carbide wheels excel on masonry bits and carbide tipped drills. Aluminum oxide wheels are your go to for high speed steel bits, balancing sharpness and durability.

Grit size matters too. Coarser grits (36 60) rapidly remove metal for rough shaping, while finer grits (80 120) put that razor sharp edge on. So pick a wheel that fits both your bits and materials, and you’ll get precise point angles every time without hassle.

Variable Speed Control

Because motor power and wheel specs only get you so far—you need to control how fast that wheel spins to truly dial in a perfect edge. Variable speed control gives you that power. For delicate bits, drop to a lower speed to avoid burning the steel; for tougher, larger bits, crank it up to cut efficiently. This flexibility prevents heat buildup, protecting your bit’s temper.

Look for grinders with either multiple discrete speed settings or continuous variable control. The latter lets you fine-tune without gaps, matching the exact needs of your material. Plus, it’s safer: you adjust speed as the task demands, reducing accident risk.

Arbor Size Compatibility

One often overlooked factor when setting up your bench grinder for drill bit sharpening is arbor size compatibility. You need the arbor diameter to match your sharpening guide’s mounting hole, or you’re stuck with a wobbly setup. Common sizes run from 5/8 inch to 1 inch, so check your accessory’s specs first. The arbor shaft length matters too. If it’s too short, your guide won’t thread on securely; too long, and it might shift during use. Don’t forget to verify if the arbor accepts adaptors for different guides. Confirm the bore size aligns with your guide’s hole diameter for stable, precise sharpening. A mismatch here turns a simple task into a frustrating guessing game, so measure twice, mount once.

Durability & Build Quality

Since you’re counting on a bench grinder to deliver consistent drill bit sharpening over the long haul, durability and build quality should top your checklist. Look for cast iron or hardened steel construction; these materials shrug off grinding heat and daily abuse without warping. Precision-machined components keep the wheel true, so you’re not fighting wobble mid-sharpen. A sturdy base and robust guards dampen vibration, which directly translates to cleaner edges on your bits. Heat-resistant wheels are a smart pick, too—they won’t glaze over and lose cutting aggression. And don’t overlook the switch; a reliable toggle beats a flimsy rocker that dies after months. Short version: solid weight, no flex, and tight tolerances mean years of razor-sharp results. Skip the flimsy sheet-metal cases—they rattle, heat up, and eventually betray you. Invest in the heavy stuff now; your drill bits will thank you later.

Safety Features Included

That solid build and vibration control don’t just protect your bits; they also set the stage for safe operation. When you’re spinning steel at high speed, you need guards and shields to catch sparks and debris, so look for sturdy blade covers that keep your hands clear. You’ll also want an emergency stop button within thumb’s reach; a quick power cutoff can save your fingers during a slip. Check for non-slip rubber feet, too, because a grinder that walks across your bench is a hazard, not a helper. And don’t overlook adjustable speed controls, which let you dial down RPMs for delicate bits, reducing heat and kickback. Finally, confirm UL or CSA certification; that sticker means the unit meets recognized safety standards, not just marketing hype. It’s your call, but these features turn a risky chore into a controlled one.

Tool Rest Adjustability

Because you need consistent results across many different bit sizes and styles, an adjustable tool rest is non-negotiable. You’ll want precise positioning, so look for rests that let you tweak both height and angle without wrestling with wrenches. A well-adjusted platform stops bit wobble dead in its tracks, preventing uneven grinding that ruins edges fast.

Here’s what separates the good from the frustrating:

• Clear markings, not guesswork, so you can return to a perfect angle every time.
• Locking mechanisms that hold firm under pressure, no creeping drift mid-pass.
• Generous travel range to handle tiny bits and bulky ones without fuss.

And think about stability: a flimsy rest flexes, and that flex costs you drill life. Dial it in once, lock it down, and you’ll sharpen confidently, knowing every edge comes out uniform. That’s the whole game.