Miniature Rubber-Cushioned Abrasive Grinding Bits for Metals
Produce a smooth surface on precise, intricate grinding jobs. These bits are cushioned by rubber, so they create a smoother finish than other bits with similar grits. Made with a diamond abrasive, they last 10 to 20 times longer than rubber-cushioned bits without diamond. Their 3/32" diameter shank and small head allow them to get into intricate spots. 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 | 1,000 Grit (Extra Smooth) Yellow | |||||||
---|---|---|---|---|---|---|---|---|---|
Dia. | Lg. | Max. Speed, rpm | Shape | Material | Bond Material | Shank Lg. | Each | ||
Aluminum, Brass, Bronze, Copper, Iron, Nickel, Stainless Steel, Steel, Titanium | |||||||||
3/32" Shank Dia. | |||||||||
1 | 7/32" | 1/2" | 21,000 | Cone | Diamond | Rubber | 1 1/4" | 0000000 | 000000 |
2 | 19/32" | 3/16" | 21,000 | Disc | Diamond | Rubber | 1 1/2" | 0000000 | 00000 |
3 | 19/32" | 1/4" | 15,000 | Cylindrical | Diamond | Rubber | 1 1/2" | 0000000 | 00000 |
4 | 11/16" | 1/8" | 21,000 | Cylindrical | Diamond | Rubber | 1 1/2" | 0000000 | 00000 |
4 | 1 1/32" | 1/16" | 21,000 | Cylindrical | Diamond | Rubber | 1 1/2" | 0000000 | 00000 |
4 | 1 1/32" | 3/32" | 15,000 | Cylindrical | Diamond | Rubber | 1 1/2" | 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 |
Long-Life Rubber-Cushioned Abrasive Grinding Bits for Metals

A diamond abrasive that's bonded to a rubber cushioning makes these bits last 10 to 20 times longer than rubber-cushioned bits without diamond. Because they’re cushioned during grinding, these bits produce a smoother surface texture than other bits with similar grits. 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 | 1,000 Grit (Extra Smooth) Yellow | ||||||
---|---|---|---|---|---|---|---|---|
Dia. | Lg. | Max. Speed, rpm | Shape | Material | Bond Material | Shank Lg. | Each | |
For Steel, Stainless Steel, Aluminum, Brass, Bronze, Copper, Iron, Nickel, Titanium | ||||||||
1/8" Shank Dia. | ||||||||
11/16" | 1/8" | 15,000 | Cylindrical | Diamond | Rubber | 1 1/2" | 0000000 | 000000 |
1" | 5/64" | 15,000 | Cylindrical | Diamond | Rubber | 1 1/2" | 0000000 | 00000 |
1" | 3/32" | 15,000 | Cylindrical | Diamond | Rubber | 1 1/2" | 0000000 | 00000 |