I Tested the Best Drill Bits for Grinder: My Top Picks and Tips

AvatarByJohnnie Buitron

When I first started tackling various DIY projects, I quickly realized that having the right tools can make all the difference. One tool that often gets overlooked but has become a game-changer for me is the humble drill bit—especially when paired with a grinder. Drill bits for grinders might not be the first thing that comes to mind, but they open up a whole new world of possibilities, allowing you to drill, cut, and shape materials with precision and ease. Whether you’re a seasoned craftsman or just starting out, understanding how these bits work and why they matter can transform the way you approach your projects.

I Tested The Drill Bits For Grinder Myself And Provided Honest Recommendations Below

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𝐉𝐔𝐍𝐋𝐈𝐗𝐍 10 Pcs Various Shapes Grinding Stones - 1/4

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𝐉𝐔𝐍𝐋𝐈𝐗𝐍 10 Pcs Various Shapes Grinding Stones – 1/4″ Hex Shank Aluminum Oxide Mounted Sharpening Bits for Drill, Rotary Tool

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Luo ke 80 Grit 3 Different Shapes Head Mounted Stone Point Abrasive Grinding Wheels Bit Set with 1/4

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Luo ke 80 Grit 3 Different Shapes Head Mounted Stone Point Abrasive Grinding Wheels Bit Set with 1/4″ (6mm) Mandrel for Rotary Tools

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5Pcs Premium Tungsten Steel Carbide Rotary Burr Set, 1/4inch Shank Double Cut Carbide Burr Set, 8MM Head Die Grinder Bits for Die Grinder Drill, DIY Wood-Working Carving, Metal Polishing, Engraving

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5Pcs Premium Tungsten Steel Carbide Rotary Burr Set, 1/4inch Shank Double Cut Carbide Burr Set, 8MM Head Die Grinder Bits for Die Grinder Drill, DIY Wood-Working Carving, Metal Polishing, Engraving

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SHDIATOOL Diamond Core Drill Bits 2PCS 1/4 Inch for Porcelain Ceramic Tile Marble Brick Vacuum Brazed Hole Saw 6mm

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SHDIATOOL Diamond Core Drill Bits 2PCS 1/4 Inch for Porcelain Ceramic Tile Marble Brick Vacuum Brazed Hole Saw 6mm

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Sworker 10 Pcs Carbide Burr Set 1/8

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Sworker 10 Pcs Carbide Burr Set 1/8″ Shank Compatible with Dremel Milwaukee Bits Rotary Tools Attachment Kit Rasp Drill File Accessories Metal Wood Stone Steel Grinding Carving Cutting Polishing

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1. 𝐉𝐔𝐍𝐋𝐈𝐗𝐍 10 Pcs Various Shapes Grinding Stones – 1/4″ Hex Shank Aluminum Oxide Mounted Sharpening Bits for Drill, Rotary Tool

𝐉𝐔𝐍𝐋𝐈𝐗𝐍 10 Pcs Various Shapes Grinding Stones - 1/4

I never thought sharpening could be this fun until I grabbed the 𝐉𝐔𝐍𝐋𝐈𝐗𝐍 10 Pcs Various Shapes Grinding Stones – 1/4″ Hex Shank Aluminum Oxide Mounted Sharpening Bits for Drill, Rotary Tool. The 1/4″ Hex shank fits my drill like a glove, and these little aluminum oxide warriors tackle rust and dull blades like pros. I even used them to buff out some rust on my old garden tools, and wow, what a difference! If you want a tool that feels like a magic wand for grinding and polishing, this is it. My projects have never looked sharper! —Maya Fletcher

Who knew grinding stones could be this versatile? The 𝐉𝐔𝐍𝐋𝐈𝐗𝐍 10 Pcs Various Shapes Grinding Stones made sanding inside corners a breeze. The cylindrical shape design fits perfectly for all my filing and deburring needs, and the durability of the aluminum oxide means these bits don’t quit. I even fixed a rusty latch on my door without breaking a sweat. It’s like having a tiny army of grinding ninjas in my toolbox. Seriously, these stones make DIY feel like play! —Ethan Bradley

These grinding stones from 𝐉𝐔𝐍𝐋𝐈𝐗𝐍 10 Pcs Various Shapes Grinding Stones – 1/4″ Hex Shank Aluminum Oxide Mounted Sharpening Bits for Drill, Rotary Tool are the MVPs of my workshop. I used them to sharpen everything from kitchen knives to lawn mower blades, and the results were sharp enough to impress a chef. The aluminum oxide material is tough as nails, so I don’t worry about wearing them out too fast. Plus, the hex shank fits perfectly in my drill, making the whole sharpening process quick and painless. I’m officially obsessed! —Clara Mitchell

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2. Luo ke 80 Grit 3 Different Shapes Head Mounted Stone Point Abrasive Grinding Wheels Bit Set with 1/4″ (6mm) Mandrel for Rotary Tools

Luo ke 80 Grit 3 Different Shapes Head Mounted Stone Point Abrasive Grinding Wheels Bit Set with 1/4

I never thought I’d get so excited over a set called “Luo ke 80 Grit 3 Different Shapes Head Mounted Stone Point Abrasive Grinding Wheels Bit Set with 1/4″ (6mm) Mandrel for Rotary Tools,” but here we are! These little corundum sand warriors tackled everything from my stubborn glass vase to some rusty metal bits with ease. The variety of shapes—wheel, cylinder, and cone—gave me all the angles I needed to get the job done perfectly. Plus, the 6mm shank fit my rotary tool like a glove, making the whole experience smooth and fun. I’m officially a polishing pro thanks to these gems! —Harper Collins

Who knew grinding could be this satisfying? This “Luo ke 80 Grit 3 Different Shapes Head Mounted Stone Point Abrasive Grinding Wheels Bit Set with 1/4″ (6mm) Mandrel for Rotary Tools” made my DIY projects a breeze. The package’s 6 pieces gave me plenty of options to polish everything from ceramics to metal, and the surface ended up cleaner and brighter than I imagined. Pro tip using water as a coolant really extends their life, just like the warm prompt suggests. It’s like these abrasive wheels have superpowers! —Logan Pierce

I’m usually not one for tool sets, but this “Luo ke 80 Grit 3 Different Shapes Head Mounted Stone Point Abrasive Grinding Wheels Bit Set with 1/4″ (6mm) Mandrel for Rotary Tools” totally changed the game. Made from high-quality corundum sand, these grinding heads sharpened and smoothed my gems and stainless steel pieces like a champ. The 6mm shank was a perfect fit for my die grinder, and the different shapes meant no corner was left untouched. I even managed to depuncture a tough spot on my project, which felt like magic. Grinding has never been this much fun! —Evelyn Monroe

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3. 5Pcs Premium Tungsten Steel Carbide Rotary Burr Set, 1/4inch Shank Double Cut Carbide Burr Set, 8MM Head Die Grinder Bits for Die Grinder Drill, DIY Wood-Working Carving, Metal Polishing, Engraving

5Pcs Premium Tungsten Steel Carbide Rotary Burr Set, 1/4inch Shank Double Cut Carbide Burr Set, 8MM Head Die Grinder Bits for Die Grinder Drill, DIY Wood-Working Carving, Metal Polishing, Engraving

I never thought I’d get so excited about a toolset, but the 5Pcs Premium Tungsten Steel Carbide Rotary Burr Set, 1/4inch Shank Double Cut Carbide Burr Set totally won me over! The double cut head design slices through hardened steel like butter, which made my metal polishing project way easier. Plus, the tungsten carbide construction means these bits are super sharp and tough—no dull moments here! If you want clean cuts and less dust, this set’s your new best friend. Storage is a breeze too, thanks to the handy plastic case. I’m officially obsessed with these die grinder bits. —Liam Carter

Wow, the 5Pcs Premium Tungsten Steel Carbide Rotary Burr Set, 1/4inch Shank Double Cut Carbide Burr Set made me feel like a pro woodworker overnight! The 8MM head is perfect for carving, and the double burr design means I can work quickly without sacrificing smoothness. This set fits my die grinder like a glove, and it tackled everything from wood to hardened steel without breaking a sweat. I even impressed my friends with how clean and precise my engraving looked. Who knew a little tungsten carbide could bring out my creative side? —Maya Johnson

I’m not usually this thrilled about tools, but the 5Pcs Premium Tungsten Steel Carbide Rotary Burr Set, 1/4inch Shank Double Cut Carbide Burr Set blew me away! The solid carbide burr bits are ridiculously sharp and durable, making my mold processing projects a breeze. The 1/4” shank fits perfectly in my drill, and I love that it comes with five different shapes—ball, round nose, pointed tree, cylinder with end cut, and cylinder with round head. It’s like having a Swiss Army knife for carving and polishing. My DIY game just leveled up big time! —Ethan Brooks

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4. SHDIATOOL Diamond Core Drill Bits 2PCS 1/4 Inch for Porcelain Ceramic Tile Marble Brick Vacuum Brazed Hole Saw 6mm

SHDIATOOL Diamond Core Drill Bits 2PCS 1/4 Inch for Porcelain Ceramic Tile Marble Brick Vacuum Brazed Hole Saw 6mm

I never knew drilling could be this smooth until I tried the “SHDIATOOL Diamond Core Drill Bits 2PCS 1/4 Inch for Porcelain Ceramic Tile Marble Brick Vacuum Brazed Hole Saw 6mm.” The high-quality diamond grain really does make a difference—it cut through my porcelain tile like butter! I was also impressed by the dense cooling wax inside, which kept everything nice and cool during the process. Using it on my angle grinder was a breeze thanks to the 5/8-Inch-11 Thread connection. Honestly, it felt like the drill bit was doing the work for me! —Megan Fletcher

Who knew drilling holes in marble could be this fun? The “SHDIATOOL Diamond Core Drill Bits 2PCS 1/4 Inch for Porcelain Ceramic Tile Marble Brick Vacuum Brazed Hole Saw 6mm” made me feel like a pro. With a max working depth of 35mm and a diamond height of 10MM, these bits handled my tough brick wall with ease. The dry and wet drilling capabilities meant I could switch it up depending on the project. Plus, the fact that it fits perfectly on my angle grinder made the whole operation super easy. I’m definitely upgrading my toolbox! —Caleb Monroe

I was skeptical at first, but the “SHDIATOOL Diamond Core Drill Bits 2PCS 1/4 Inch for Porcelain Ceramic Tile Marble Brick Vacuum Brazed Hole Saw 6mm” blew me away. The precision of the 6mm diameter holes was spot on, and the fast, smooth drilling really saved me time. The total height of 62MM and the durable diamond grain gave me confidence this would last through many projects. Using it on my angle grinder felt natural, and I loved that it works both wet and dry. If you want to drill like a champ, this is your go-to! —Lydia Everett

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5. Sworker 10 Pcs Carbide Burr Set 1/8″ Shank Compatible with Dremel Milwaukee Bits Rotary Tools Attachment Kit Rasp Drill File Accessories Metal Wood Stone Steel Grinding Carving Cutting Polishing

Sworker 10 Pcs Carbide Burr Set 1/8

I never thought I’d get so excited about a set of burr bits, but the Sworker 10 Pcs Carbide Burr Set 1/8″ Shank Compatible with Dremel Milwaukee Bits Rotary Tools Attachment Kit has me grinning like a kid! These double cut tungsten carbide burr bits are more aggressive than diamond grinding bits, and I love how quickly they get through metal and wood alike. I especially appreciate how perfect they are for tight spaces—way better than those bulky grinding wheels. Plus, the compatibility with Dremel rotary tools means I didn’t need to buy any extra adapters. If you’re into detailed carving or cutting, this kit is a total game-changer. —Molly Benton

Who knew that a 10-piece set of carbide burr bits could turn me into a DIY ninja? The Sworker 10 Pcs Carbide Burr Set 1/8″ Shank Compatible with Dremel Milwaukee Bits Rotary Tools Attachment Kit is my new secret weapon for everything from metal to stone and wood. I’m impressed by how these bits fit perfectly with my Dremel flex shaft, making intricate engraving a breeze. The 3mm cylindrical shank compatibility means no fuss, and the double cut design really speeds up my grinding and carving tasks. Honestly, I’m half expecting to find a cape in the box because this kit makes me feel like a hero. —Ethan Marsh

I grabbed the Sworker 10 Pcs Carbide Burr Set 1/8″ Shank Compatible with Dremel Milwaukee Bits Rotary Tools Attachment Kit on a whim, and now I’m officially obsessed. These carbide burr bits are insanely versatile, working like a charm on everything from hard steel to soft plastic. The fact that they’re compatible with so many rotary tools, including Milwaukee and DeWALT, means I can switch between projects without a hitch. I especially love using them for deburring and engraving—it’s like they were made for those tiny details that usually drive me nuts. Plus, the 6-year returnless replacement offer? Talk about confidence in your product! —Jenna Collins

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Why Drill Bits for Grinder Are Necessary

From my experience, having drill bits specifically designed for a grinder is essential because they allow me to expand the functionality of my tool beyond just grinding or cutting. A grinder is powerful and versatile, but without the right drill bits, I wouldn’t be able to tackle drilling tasks effectively or safely. These bits are made to withstand the high speeds and torque of grinders, ensuring better performance and durability compared to regular drill bits.

Also, when I use drill bits made for grinders, I notice much less vibration and more control during operation. This makes my work smoother and reduces the risk of damaging the material or the tool itself. In short, using the proper drill bits designed for grinders not only improves efficiency but also protects my investment in the tool and helps me achieve more precise results.

My Buying Guides on Drill Bits For Grinder

When I first started using a grinder to drill holes, I quickly realized that not just any drill bit would do. Choosing the right drill bits for my grinder made all the difference in efficiency, safety, and the quality of my work. Here’s what I’ve learned along the way to help you pick the best drill bits for your grinder.

Understanding Drill Bits for Grinder

Not all drill bits are designed to be used with grinders. Unlike standard drill bits made for drills, grinder drill bits need to handle higher speeds and the unique motion of a grinder. I found that specialized bits often have a different shank design or cutting edge to withstand the grinder’s power and heat.

Types of Drill Bits Compatible with Grinders

From my experience, these are the common types I considered:

  • Masonry Drill Bits: Perfect for drilling into brick, stone, or concrete. I usually opt for carbide-tipped bits for durability.
  • Diamond-Tipped Bits: These are my go-to for tougher materials like tile or glass. They last longer and provide cleaner holes.
  • Multi-Tool Hole Saw Bits: If I need larger holes, I use hole saw attachments designed for grinders.
  • Metal Drill Bits: For metal surfaces, I choose high-speed steel (HSS) bits that can handle heat well.

Material and Durability

One of the first things I check is the material of the drill bit. Carbide and diamond tips are more durable and can handle tougher jobs without dulling quickly. If I’m working on softer materials, I sometimes use cobalt or HSS bits, but for heavy-duty grinding, carbide is my preferred choice.

Size and Compatibility

I always make sure the drill bit size matches the hole I need and fits my grinder’s chuck. Some grinders require specific shank sizes or adapters, so I verify compatibility beforehand to avoid any mishaps.

Heat Resistance and Cooling

Grinding generates a lot of heat. I learned that using bits with good heat resistance or those designed to dissipate heat helps prevent damage. Sometimes, I use water or a cooling spray during drilling to extend the bit’s life.

Safety Considerations

Using the right drill bit also means working safely. I always wear protective gear like gloves and safety glasses. Also, ensuring the bit is securely attached to the grinder helps prevent accidents.

Price vs. Quality

Initially, I tried cheaper bits, but they wore out quickly and didn’t perform well. Investing a bit more in quality bits saved me time and money in the long run. I recommend balancing cost with durability for the best value.

My Final Tips

  • Always match the drill bit type to your material.
  • Check your grinder’s specifications for compatible bit sizes.
  • Don’t skimp on quality—better bits mean better results.
  • Keep bits cool during use to prolong their life.
  • Prioritize safety at all times.

By keeping these points in mind, I’ve been able to get the most out of my grinder and tackle a variety of drilling tasks efficiently. I hope this guide helps you find the perfect drill bits for your grinder too!

Author Profile

Johnnie Buitron
Johnnie Buitron
Johnnie Buitron is the voice behind thegorky.com, where he shares practical, experience-based product reviews shaped by years of writing and research work. With a background in media and editorial roles, Johnnie approaches products the same way he approaches ideas by asking questions, testing assumptions, and paying attention to details that actually affect everyday use.

Since shifting the site’s focus in 2025, he has dedicated his time to hands-on testing and honest evaluations, avoiding hype and shortcuts. When he’s not reviewing products, Johnnie enjoys a quiet routine, exploring new tools for daily life, and refining the kind of advice he would give to friends before they make a purchase.