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Polishing Bobs
Polish small areas and hard-to-reach spots. Use these bobs with lapping pastes and buffing compounds and a drill or grinder for bits and burs.
Choose soft bobs for a finer finish.
For technical drawings and 3-D models, click on a part number.
Aggressive Polishing Bobs
Remove scratches from your workpiece with these hard bobs. Use them with lapping pastes and buffing compounds and a drill or grinder for bits and burs.
Choose rock hard bobs for the most aggressive material removal or when working with hard materials.
For technical drawings and 3-D models, click on a part number.
Grinding Bits for Metals
Made of aluminum oxide, these bits are well suited for use on most metals and materials that are not heat sensitive.
Bits are also known as mounted points and die grinder bits. Head diameter is measured at the widest point.
Caution: As bit shank is exposed beyond 1/2", maximum safe rpm decreases significantly. Refer to ANSI standard B7.1. Use only accessories that have a greater rpm rating than the maximum speed of the grinder you choose.
For technical drawings and 3-D models, click on a part number.
Head | Abrasive | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Dia. | Lg. | Max. Speed, rpm | Shape No. | Material | Bond Material | Shank Lg. | Grit (Surface Texture) | Pkg. Qty. | Pkg. | ||
1/8" Shank Dia. | |||||||||||
For Steel, Stainless Steel, Iron | |||||||||||
26 | 1/2" | 3/8" | 41,020 | B62 | Aluminum Oxide | Vitrified Clay | 1 1/2" | 120 (Smooth) Blue | 5 | 00000000 | 00000 |
27 | 1/8" | 1/8" | 105,000 | B124 | Aluminum Oxide | Vitrified Clay | 1 1/2" | 120 (Smooth) Blue | 5 | 00000000 | 0000 |
27 | 3/16" | 3/16" | 104,250 | B123 | Aluminum Oxide | Vitrified Clay | 1 1/2" | 120 (Smooth) Blue | 5 | 00000000 | 0000 |
27 | 1/4" | 1/4" | 81,370 | B123SS | Aluminum Oxide | Vitrified Clay | 1 1/2" | 120 (Smooth) Blue | 5 | 00000000 | 00000 |
27 | 3/8" | 3/8" | 61,650 | B122 | Aluminum Oxide | Vitrified Clay | 1 1/2" | 120 (Smooth) Blue | 5 | 00000000 | 0000 |
27 | 1/2" | 1/2" | 45,370 | B121 | Aluminum Oxide | Vitrified Clay | 1 1/2" | 120 (Smooth) Blue | 5 | 00000000 | 0000 |
1/4" Shank Dia. | |||||||||||
For Steel, Stainless Steel, Iron | |||||||||||
27 | 5/8" | 5/8" | 61,120 | A26 | Aluminum Oxide | Vitrified Clay | 1 1/2" | 120 (Smooth) Blue | 5 | 00000000 | 00000 |
27 | 1" | 1" | 35,620 | A25 | Aluminum Oxide | Vitrified Clay | 1 1/2" | 120 (Smooth) Blue | 5 | 00000000 | 00000 |
Rubber-Cushioned Abrasive Grinding Bits for Metals
The abrasive grains in these bits are blended with rubber, which cushions during grinding to produce a smoother surface texture than other bits with similar grits. Bits are also known as mounted points and die grinder bits. Head diameter is measured at the widest point.
Bits for steel are aluminum oxide, which is the most common abrasive used in grinding metal.
Bits for aluminum, brass, and bronze are silicon carbide, which cuts through soft metals without generating much heat or causing material buildup.
Caution: As bit shank is exposed beyond 1/2", maximum safe rpm decreases significantly. Refer to ANSI standard B7.1. Use only accessories that have a greater rpm rating than the maximum speed of the grinder you choose.
For technical drawings and 3-D models, click on a part number.
Head | Abrasive | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Dia. | Lg. | Max. Speed, rpm | Shape No. | Shape | Material | Bond Material | Shank Lg. | Choose a Grit (Surface Texture) | Each | ||
For Steel | |||||||||||
1/8" Shank Dia. | |||||||||||
4 | 3/16" | 3/16" | 104,250 | B123 | Ball | Aluminum Oxide | Rubber | 1 1/2" | 00000000 | 00000 | |
4 | 3/8" | 3/8" | 35,000 | B122 | Ball | Aluminum Oxide | Rubber | 1 1/2" | 80 (Smooth) Silver | 00000000 | 00000 |
1/4" Shank Dia. | |||||||||||
4 | 1/2" | 1/2" | 76,390 | B121 | Ball | Aluminum Oxide | Rubber | 1 1/2" | 00000000 | 00000 | |
For Aluminum, Brass, Bronze | |||||||||||
1/8" Shank Dia. | |||||||||||
4 | 3/16" | 3/16" | 104,250 | B123 | Ball | Silicon Carbide | Rubber | 1 1/2" | 00000000 | 00000 | |
1/4" Shank Dia. | |||||||||||
4 | 1/2" | 1/2" | 76,390 | B121 | Ball | Silicon Carbide | Rubber | 1 1/2" | 00000000 | 00000 |
Cotton-Laminate Grinding Bits for Metals
Made of cotton fiber layers embedded with aluminum-oxide grains, these bits grind and finish in one step. They’re ideal for light deburring, blending, and finishing metal. These grinding bits remove material more efficiently than rubber-cushioned bits. While grinding, they resist the buildup of aluminum, brass, bronze, and other nonferrous metal. They’re also known as mounted points and die grinder bits. Head diameter is measured at the widest point.
Caution: As bit shank is exposed beyond 1/2", maximum safe rpm decreases significantly. Refer to ANSI standard B7.1. Use only accessories that have a greater rpm rating than the maximum speed of the grinder you choose.
For technical drawings and 3-D models, click on a part number.
Head | Abrasive | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Dia. | Lg. | Max. Speed, rpm | Shape No. | Shape | Material | Bond Material | Shank Lg. | Grit (Surface Texture) | Each | ||
For Steel, Stainless Steel, Aluminum, Brass, Copper, Iron, Nickel, Titanium | |||||||||||
1/8" Shank Dia. | |||||||||||
2 | 3/8" | 3/8" | 61,650 | B122 | Ball | Cotton Laminate/Aluminum Oxide Blend | Rubber | 1 1/2" | 80 (Smooth) Blue-Gray | 00000000 | 00000 |
2 | 1/2" | 1/2" | 45,370 | B121 | Ball | Cotton Laminate/Aluminum Oxide Blend | Rubber | 1 1/2" | 80 (Smooth) Blue-Gray | 00000000 | 0000 |
1/4" Shank Dia. | |||||||||||
2 | 1" | 1" | 35,510 | A25 | Ball | Cotton Laminate/Aluminum Oxide Blend | Rubber | 1 1/2" | 80 (Smooth) Blue-Gray | 00000000 | 00000 |
High-Performance Grinding Bits for Metals
Made of ceramic alumina, these bits prevent material and heat buildup better than bits made of boron nitride and aluminum oxide when used on steel, stainless steel, iron, and titanium. They also last longer than boron nitride bits, so they’re the best choice for high-volume applications. Also known as mounted points and die grinder bits.
Head diameter is measured at the widest point.
Caution: As bit shank is exposed beyond 1/2", maximum safe rpm decreases significantly. Refer to ANSI standard B7.1. Use only accessories that have a greater rpm rating than the maximum speed of the grinder you choose.
For technical drawings and 3-D models, click on a part number.
Head | Abrasive | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Dia. | Lg. | Max. Speed, rpm | Shape No. | Shape | Material | Bond Material | Shank Lg. | Grit (Surface Texture) | Each | ||
For Iron, Stainless Steel, Steel, Titanium | |||||||||||
1/8" Shank Dia. | |||||||||||
3 | 3/8" | 3/8" | 68,740 | B122 | Ball | Ceramic Alumina | Vitrified Clay | 1 1/2" | 80 (Smooth) Green | 0000000 | 00000 |
Grinding Bits for Stainless Steel
Bits are specially formulated to stay cool during grinding, so they won’t mar or discolor stainless steel. They are also known as mounted points and die grinder bits. Head diameter is measured at the widest point.
Caution: As bit shank is exposed beyond 1/2", maximum safe rpm decreases significantly. Refer to ANSI standard B7.1. Use only accessories that have a greater rpm rating than the maximum speed of the grinder you choose.
For technical drawings and 3-D models, click on a part number.
Head | Abrasive | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Dia. | Lg. | Max. Speed, rpm | Shape No. | Shape | Material | Bond Material | Shank Lg. | Grit (Surface Texture) | Each | ||
For Stainless Steel | |||||||||||
1/8" Shank Dia. | |||||||||||
4 | 3/8" | 3/8" | 61,650 | B122 | Ball | Aluminum Oxide | Vitrified Ceramic | 1 1/2" | 80 (Smooth) Pink | 00000000 | 00000 |
4 | 1/2" | 1/2" | 45,370 | B121 | Ball | Aluminum Oxide | Vitrified Ceramic | 1 1/2" | 80 (Smooth) Pink | 00000000 | 0000 |
Long-Life Grinding Bits for Nonmetals
The diamond abrasive in these bits is extremely hard and lasts longer than tungsten carbide. For longer tool life and improved finish, use a water- or oil-soluble mist or coolant.
Bits are also known as mounted points and die grinder bits. Head diameter is measured at the widest point.
Caution: As bit shank is exposed beyond 1/2", maximum safe rpm decreases significantly. Refer to ANSI standard B7.1. Use only accessories that have a greater rpm rating than the maximum speed of the grinder you choose.
For technical drawings and 3-D models, click on a part number.
Head | |||||||||
---|---|---|---|---|---|---|---|---|---|
Dia. | Lg. | Max. Speed, rpm | Shape | Abrasive Material | O'all Lg. | Grit (Surface Texture) | Each | ||
For Carbide, Ceramics, Glass | |||||||||
1/8" Shank Dia. | |||||||||
6 | 0.06" | 0.06" | 96,000 | Ball | Diamond | 2 1/4" | 120 (Smooth) Silver | 0000000 | 000000 |
6 | 0.09" | 0.09" | 96,000 | Ball | Diamond | 2 1/4" | 120 (Smooth) Silver | 0000000 | 00000 |
6 | 0.13" | 0.13" | 96,000 | Ball | Diamond | 2 1/4" | 120 (Smooth) Silver | 0000000 | 00000 |
6 | 0.19" | 0.19" | 96,000 | Ball | Diamond | 2 1/4" | 120 (Smooth) Silver | 0000000 | 00000 |
6 | 0.25" | 1/4" | 46,000 | Ball | Diamond | 2 1/4" | 120 (Smooth) Silver | 0000000 | 00000 |
6 | 0.38" | 0.38" | 46,000 | Ball | Diamond | 2 1/4" | 120 (Smooth) Silver | 0000000 | 00000 |
7 | 0.031" | 1/32" | 40,000 | Ball | Diamond | 2 1/4" | 120 (Smooth) Silver | 00000000 | 00000 |
1/4" Shank Dia. | |||||||||
6 | 0.5" | 1/2" | 30,000 | Ball | Diamond | 2 1/4" | 120 (Smooth) Silver | 0000000 | 00000 |
Miniature Long-Life Grinding Bits for Nonmetals
Made with diamond abrasive, these bits are extremely hard and last longer than tungsten carbide. They have a small shank and head for precise and intricate jobs. To extend the life of these bits and improve their finish, use a water- or oil-soluble mist or coolant. They are also known as mounted points and die grinder bits. Head diameter is measured at the widest point.
A keyless chuck (sold separately) connects these bits to rotary tools that accept a 1/8" shank diameter.
Caution: As bit shank is exposed beyond 1/2", maximum safe rpm decreases significantly. Refer to ANSI standard B7.1. Use only accessories that have a greater rpm rating than the maximum speed of the grinder you choose.
For technical drawings and 3-D models, click on a part number.
Head | |||||||||
---|---|---|---|---|---|---|---|---|---|
Dia. | Lg. | Max. Speed, rpm | Shape | Abrasive Material | Shank Lg. | Grit (Surface Texture) | Each | ||
For Carbide, Ceramics, Composites, Fiberglass, Glass, Plastic, Rubber | |||||||||
3/32" Shank Dia. | |||||||||
2 | 0.051" | 0.051" | 70,000 | Ball | Diamond | 1 3/4" | 100 (Smooth) Silver | 0000000 | 000000 |
2 | 0.075" | 0.075" | 45,000 | Ball | Diamond | 1 5/8" | 100 (Smooth) Silver | 0000000 | 00000 |
2 | 0.091" | 0.091" | 40,000 | Ball | Diamond | 1 5/8" | 100 (Smooth) Silver | 0000000 | 00000 |
2 | 0.138" | 0.138" | 25,000 | Ball | Diamond | 1 5/8" | 100 (Smooth) Silver | 0000000 | 00000 |
2 | 0.169" | 0.169" | 25,000 | Ball | Diamond | 1 5/8" | 100 (Smooth) Silver | 0000000 | 00000 |
Swap out accessories on your Dremel without tools.
For Shank Dia. | Manufacturer Model Number | For Manufacturer Model Number | Mounting Hole Thread Size | Body Material | Jaw Material | Each | |
1/32"-1/8" | 4486 | 100, 200, 212, 225, 275, 285, 300, 395, 398, 400, 575, 750, 770, 780, 800, 3000, 4000, 7700, 8050, 8200, 8220 | 1/4"-40 | Steel | Steel | 0000000 | 00000 |
Miniature Multipurpose Grinding Bits
Grind a variety of materials, from metal to ceramic and plastic, in precise, detailed jobs. These bits have a diamond abrasive, so they’re extremely hard. Their 3/32" diameter shank and small head allow them to get into intricate spots. They are also known as mounted points and die grinder bits. Head diameter is measured at the widest point.
A keyless chuck (sold separately) connects these bits to rotary tools that accept a 1/8" shank diameter.
Caution: As bit shank is exposed beyond 1/2", maximum safe rpm decreases significantly. Refer to ANSI standard B7.1. Use only accessories that have a greater rpm rating than the maximum speed of the grinder you choose.
For technical drawings and 3-D models, click on a part number.
Head | Abrasive | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Dia. | Lg. | Max. Speed, rpm | Shape | Material | Bond Material | Shank Lg. | Grit (Surface Texture) | Each | ||
For Aluminum, Brass, Bronze, Ceramics, Copper, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium | ||||||||||
3/32" Shank Dia. | ||||||||||
1 | 5/32" | 3/16" | 21,000 | Ball | Diamond | Vitrified Ceramic | 1 1/2" | 120 (Smooth) Yellow | 0000000 | 000000 |
Swap out accessories on your Dremel without tools.
For Shank Dia. | Manufacturer Model Number | For Manufacturer Model Number | Mounting Hole Thread Size | Body Material | Jaw Material | Each | |
1/32"-1/8" | 4486 | 100, 200, 212, 225, 275, 285, 300, 395, 398, 400, 575, 750, 770, 780, 800, 3000, 4000, 7700, 8050, 8200, 8220 | 1/4"-40 | Steel | Steel | 0000000 | 00000 |
Mirror-Finish Polishing Media for Steel, Stainless Steel, and Hard Metals
Often used as the final step after other media, this type of media is also good for use on fragile parts and won't contaminate nonferrous materials. Choose a size that’s large enough not to lodge in recesses and holes. Use with liquid compounds in tumbling and vibrating machines.