About Sanding Abrasives
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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 | 320 Grit (Extra Smooth) Blue | |||||||
|---|---|---|---|---|---|---|---|---|---|
| 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 | 320 Grit (Extra Smooth) Blue | ||||||
|---|---|---|---|---|---|---|---|---|
| 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 |
Multipurpose Grinding Bits
The diamond abrasive in these bits is extremely hard and can grind metal, ceramic, and plastic. 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 | Material | Bond Material | Shank Lg. | Grit (Surface Texture) | Each | |
For Aluminum, Brass, Bronze, Ceramics, Copper, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium | |||||||||
1/8" Shank Dia. | |||||||||
| 21/32" | 1/16" | 21,000 | Cylindrical | Diamond | Vitrified Ceramic | 1 1/2" | 320 (Extra Smooth) Yellow | 0000000 | 000000 |
| 21/32" | 3/16" | 21,000 | Cylindrical | Diamond | Vitrified Ceramic | 1 1/2" | 320 (Extra Smooth) Yellow | 0000000 | 00000 |
| 7/8" | 5/64" | 21,000 | Cylindrical | Diamond | Vitrified Ceramic | 1 1/2" | 320 (Extra Smooth) Yellow | 0000000 | 00000 |
| 7/8" | 3/32" | 21,000 | Cylindrical | Diamond | Vitrified Ceramic | 1 1/2" | 320 (Extra Smooth) Yellow | 0000000 | 00000 |
Replaceable-Cap Sanding Bits for Countersunk Holes
Choose a bit with the same angle as your countersink to debur the inside of the hole. Slip a cap onto the head of a shank (sold separately).
For technical drawings and 3-D models, click on a part number.
Caps | Required Shanks | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Dia. | Lg. | For Shank Dia. | Max. Speed, rpm | Abrasive Material | Abrasive Backing Material | For Use On | For Use With | Each | Each | ||
60° Countersink Angle | |||||||||||
| 3/4" | 3/4" | 1/4" | 20,000 | Aluminum Oxide | Cloth | Steel, Wood | Drills, Grinders for Bits and Burs | 00000000 | 00000 | 00000000 | 000000 |
| 1" | 1" | 1/4" | 18,000 | Aluminum Oxide | Cloth | Steel, Wood | Drills, Grinders for Bits and Burs | 00000000 | 0000 | 00000000 | 00000 |
| 1 1/2" | 1 1/2" | 1/4" | 10,000 | Aluminum Oxide | Cloth | Steel, Wood | Drills, Grinders for Bits and Burs | 00000000 | 0000 | 00000000 | 00000 |
| 2" | 2" | 3/8" | 6,000 | Aluminum Oxide | Cloth | Steel, Wood | Drills, Grinders for Bits and Burs | 00000000 | 0000 | 00000000 | 00000 |
90° Countersink Angle | |||||||||||
| 3/4" | 1/2" | 1/4" | 20,000 | Aluminum Oxide | Cloth | Steel, Wood | Drills, Grinders for Bits and Burs | 00000000 | 0000 | 00000000 | 00000 |
| 1" | 11/16" | 1/4" | 18,000 | Aluminum Oxide | Cloth | Steel, Wood | Drills, Grinders for Bits and Burs | 00000000 | 0000 | 00000000 | 00000 |
| 1 1/2" | 1 1/16" | 1/4" | 10,000 | Aluminum Oxide | Cloth | Steel, Wood | Drills, Grinders for Bits and Burs | 00000000 | 0000 | 00000000 | 00000 |
| 2" | 1 7/16" | 3/8" | 6,000 | Aluminum Oxide | Cloth | Steel, Wood | Drills, Grinders for Bits and Burs | 00000000 | 0000 | 00000000 | 00000 |
| 3" | 2 1/8" | 3/8" | 2,500 | Aluminum Oxide | Cloth | Steel, Wood | Drills, Grinders for Bits and Burs | 00000000 | 0000 | 00000000 | 00000 |
Spiral-Wound Sanding Rolls
As the outer layer wears away, new abrasive is exposed. Also known as cartridge rolls. A shank adapter or tapered spindle with a shank is required (both sold separately). The most common abrasive material, aluminum oxide is hard enough to sand steel and wood. The diameter listed is for the large end of the roll.
Straight rolls are for use in channels, fillets, recesses, contours, sidewalls, and other hard-to-reach spots.
Tapered rolls are for use on angles, corners, concave contours, funnel-shaped recesses, and other intricate shapes.
| Dia. | Lg. | Arbor Hole Dia. | Max. Speed, rpm | Abrasive Material | Abrasive Backing Material | For Use On | For Use With | Grit | Pkg. Qty. | Pkg. | |
Straight Rolls | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
For Extra-Smooth Finish | |||||||||||
| 1/4" | 1" | 1/8" | 26,000 | Aluminum Oxide | Cloth | Steel, Wood | Grinders for Bits and Burs | 320 | 25 | 00000000 | 00000 |
| 1/4" | 1 1/2" | 1/8" | 26,000 | Aluminum Oxide | Cloth | Steel, Wood | Grinders for Bits and Burs | 320 | 25 | 00000000 | 00000 |
| 5/16" | 1" | 1/8" | 26,000 | Aluminum Oxide | Cloth | Steel, Wood | Grinders for Bits and Burs | 320 | 25 | 00000000 | 00000 |
| 5/16" | 1 1/2" | 1/8" | 26,000 | Aluminum Oxide | Cloth | Steel, Wood | Grinders for Bits and Burs | 320 | 25 | 00000000 | 00000 |
| 3/8" | 1" | 1/8" | 26,000 | Aluminum Oxide | Cloth | Steel, Wood | Grinders for Bits and Burs | 320 | 25 | 00000000 | 00000 |
| 3/8" | 1 1/2" | 1/8" | 26,000 | Aluminum Oxide | Cloth | Steel, Wood | Grinders for Bits and Burs | 320 | 25 | 00000000 | 00000 |
| 1/2" | 3/4" | 1/8" | 26,000 | Aluminum Oxide | Cloth | Steel, Wood | Grinders for Bits and Burs | 320 | 25 | 00000000 | 00000 |
| 1/2" | 1" | 1/8" | 26,000 | Aluminum Oxide | Cloth | Steel, Wood | Grinders for Bits and Burs | 320 | 25 | 00000000 | 00000 |
| 1/2" | 1 1/2" | 1/8" | 26,000 | Aluminum Oxide | Cloth | Steel, Wood | Grinders for Bits and Burs | 320 | 25 | 00000000 | 00000 |
| 5/8" | 1" | 3/16" | 18,000 | Aluminum Oxide | Cloth | Steel, Wood | Grinders for Bits and Burs | 320 | 10 | 00000000 | 0000 |
| 5/8" | 1 1/2" | 3/16" | 18,000 | Aluminum Oxide | Cloth | Steel, Wood | Grinders for Bits and Burs | 320 | 10 | 00000000 | 00000 |
| 5/8" | 2" | 3/16" | 18,000 | Aluminum Oxide | Cloth | Steel, Wood | Grinders for Bits and Burs | 320 | 10 | 00000000 | 00000 |
| 3/4" | 1" | 3/16" | 18,000 | Aluminum Oxide | Cloth | Steel, Wood | Grinders for Bits and Burs | 320 | 10 | 00000000 | 00000 |
| 3/4" | 1 1/2" | 3/16" | 18,000 | Aluminum Oxide | Cloth | Steel, Wood | Grinders for Bits and Burs | 320 | 10 | 00000000 | 00000 |
| 3/4" | 2" | 3/16" | 18,000 | Aluminum Oxide | Cloth | Steel, Wood | Grinders for Bits and Burs | 320 | 10 | 00000000 | 00000 |
| 1" | 1" | 3/16" | 18,000 | Aluminum Oxide | Cloth | Steel, Wood | Grinders for Bits and Burs | 320 | 10 | 00000000 | 00000 |
| 1" | 1 1/2" | 3/16" | 18,000 | Aluminum Oxide | Cloth | Steel, Wood | Grinders for Bits and Burs | 320 | 10 | 00000000 | 00000 |
| 1" | 2" | 3/16" | 18,000 | Aluminum Oxide | Cloth | Steel, Wood | Grinders for Bits and Burs | 320 | 5 | 00000000 | 00000 |
Tapered Rolls | |||||||||||
For Extra-Smooth Finish | |||||||||||
| 3/8" | 1" | 1/8" | 26,000 | Aluminum Oxide | Cloth | Steel, Wood | Grinders for Bits and Burs | 320 | 25 | 00000000 | 00000 |
| 3/8" | 1 1/2" | 1/8" | 26,000 | Aluminum Oxide | Cloth | Steel, Wood | Grinders for Bits and Burs | 320 | 25 | 00000000 | 00000 |
| 1/2" | 1" | 1/8" | 26,000 | Aluminum Oxide | Cloth | Steel, Wood | Grinders for Bits and Burs | 320 | 25 | 00000000 | 00000 |
| 1/2" | 1 1/2" | 1/8" | 26,000 | Aluminum Oxide | Cloth | Steel, Wood | Grinders for Bits and Burs | 320 | 10 | 00000000 | 00000 |
| 5/8" | 1" | 1/8" | 18,000 | Aluminum Oxide | Cloth | Steel, Wood | Grinders for Bits and Burs | 320 | 10 | 00000000 | 00000 |
| 5/8" | 1 1/2" | 1/8" | 18,000 | Aluminum Oxide | Cloth | Steel, Wood | Grinders for Bits and Burs | 320 | 10 | 00000000 | 00000 |
| 3/4" | 1 1/2" | 3/16" | 18,000 | Aluminum Oxide | Cloth | Steel, Wood | Grinders for Bits and Burs | 320 | 10 | 00000000 | 00000 |
| 7/8" | 1 1/2" | 3/16" | 18,000 | Aluminum Oxide | Cloth | Steel, Wood | Grinders for Bits and Burs | 320 | 10 | 00000000 | 00000 |
| 1" | 1" | 3/16" | 18,000 | Aluminum Oxide | Cloth | Steel, Wood | Grinders for Bits and Burs | 320 | 10 | 00000000 | 00000 |
| 1" | 2" | 3/16" | 18,000 | Aluminum Oxide | Cloth | Steel, Wood | Grinders for Bits and Burs | 320 | 10 | 00000000 | 00000 |
| Shank Dia. | Overall Lg. | Each | |
For 3/4" and 1" Lg. Rolls with 1/8" Arbor Hole Dia. | |||
|---|---|---|---|
| 1/8" | 2 3/4" | 0000000 | 00000 |
| 1/4" | 2 1/2" | 0000000 | 0000 |
| 1/4" | 4" | 0000000 | 0000 |
| 1/4" | 6" | 0000000 | 0000 |
For 3/4" and 1" Lg. Rolls with 3/16" Arbor Hole Dia. | |||
| 1/4" | 2 3/4" | 0000000 | 0000 |
For 1 1/2" Lg. Rolls with 1/8" Arbor Hole Dia. | |||
| 1/8" | 3" | 0000000 | 0000 |
| 1/4" | 2 3/4" | 0000000 | 0000 |
| 1/4" | 4" | 0000000 | 0000 |
| 1/4" | 6" | 0000000 | 0000 |
For 1 1/2" Lg. Rolls with 3/16" Arbor Hole Dia. | |||
| 1/4" | 3" | 0000000 | 0000 |
For 2" Lg. Rolls with 3/16" Arbor Hole Dia. | |||
| 1/4" | 3 1/2" | 0000000 | 0000 |