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Long-Life Grinding Bits for Nonmetals
 |  |  |  |  |  |  |  |  |
Style 1 | Style 2 | Style 3 | Style 4 | Style 5 | Style 6 | Style 7 | Style 8 | Style 9 |
Cylinder
|
Style 1 |
|
Style 3 |
Head | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Style | Dia. | Lg. | Max. Rotation Speed, rpm | Abrasive Material | Overall Lg. | Grit (Surface Texture) | Each | |||
For Carbide, Ceramics, and Glass | ||||||||||
1/8" Diameter Shank | ||||||||||
| 1 | 0.03" | 0.08" | 100,000 | Diamond | 2 1/4" | 220 (Extra Smooth) Silver | 4376A11 | 000000 | ||
| 1 | 0.03" | 0.19" | 96,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4490A75 | 00000 | ||
| 1 | 0.04" | 0.08" | 100,000 | Diamond | 2 1/4" | 220 (Extra Smooth) Silver | 4376A12 | 00000 | ||
| 1 | 0.04" | 0.19" | 96,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4490A76 | 00000 | ||
| 1 | 0.05" | 0.08" | 100,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4376A13 | 00000 | ||
| 1 | 0.05" | 0.19" | 96,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4490A77 | 00000 | ||
| 1 | 0.06" | 0.12" | 100,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4376A31 | 00000 | ||
| 1 | 0.06" | 1/4" | 96,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4490A14 | 00000 | ||
| 1 | 0.07" | 0.12" | 100,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4376A15 | 00000 | ||
| 1 | 0.08" | 0.16" | 100,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4376A16 | 00000 | ||
| 1 | 0.08" | 1/4" | 96,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4490A15 | 00000 | ||
| 1 | 0.09" | 0.16" | 100,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4376A17 | 00000 | ||
| 1 | 0.1" | 0.16" | 100,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4376A18 | 00000 | ||
| 1 | 0.11" | 0.16" | 60,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4376A19 | 00000 | ||
| 1 | 0.12" | 0.16" | 60,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4376A21 | 00000 | ||
| 1 | 0.13" | 0.2" | 60,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4376A22 | 00000 | ||
| 1 | 0.13" | 1/4" | 96,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4490A17 | 00000 | ||
| 1 | 0.14" | 0.2" | 60,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4376A23 | 00000 | ||
| 1 | 0.16" | 0.2" | 60,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4376A24 | 00000 | ||
| 1 | 0.16" | 1/4" | 96,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4490A79 | 00000 | ||
| 1 | 0.19" | 0.31" | 96,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4490A21 | 00000 | ||
| 1 | 1/4" | 0.03" | 46,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4490A53 | 00000 | ||
| 1 | 1/4" | 0.06" | 46,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4490A55 | 00000 | ||
| 1 | 1/4" | 0.13" | 46,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4490A57 | 00000 | ||
| 1 | 1/4" | 1/4" | 100,000 | Diamond | 2" | 150 (Smooth) Silver | 4490A107 | 00000 | ||
| 1 | 1/4" | 0.31" | 46,500 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4490A23 | 00000 | ||
| 1 | 1/4" | 1/2" | 100,000 | Diamond | 2" | 150 (Smooth) Silver | 4490A108 | 00000 | ||
| 1 | 0.31" | 0.31" | 46,500 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4490A66 | 00000 | ||
| 1 | 3/8" | 1/8" | 40,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4490A106 | 00000 | ||
| 1 | 3/8" | 1/4" | 90,000 | Diamond | 2" | 150 (Smooth) Silver | 4490A109 | 00000 | ||
| 1 | 3/8" | 3/8" | 90,000 | Diamond | 2" | 150 (Smooth) Silver | 4490A111 | 00000 | ||
| 3 | 0.14" | 0.31" | 96,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4490A65 | 00000 | ||
1/4" Diameter Shank | ||||||||||
| 1 | 0.06" | 1/4" | 96,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4490A11 | 00000 | ||
| 1 | 0.09" | 1/4" | 96,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4490A78 | 00000 | ||
| 1 | 0.13" | 1/4" | 96,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4490A13 | 00000 | ||
| 1 | 0.19" | 0.31" | 96,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4490A16 | 00000 | ||
| 1 | 0.2" | 0.24" | 60,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4376A28 | 00000 | ||
| 1 | 0.24" | 0.28" | 60,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4376A27 | 00000 | ||
| 1 | 1/4" | 0.31" | 46,500 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4490A18 | 00000 | ||
| 1 | 0.26" | 0.28" | 60,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4376A41 | 00000 | ||
| 1 | 0.31" | 0.31" | 46,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4490A19 | 00000 | ||
| 1 | 0.32" | 0.32" | 30,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4376A42 | 00000 | ||
| 1 | 0.34" | 0.32" | 30,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4376A43 | 00000 | ||
| 1 | 0.38" | 0.31" | 46,500 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4490A22 | 00000 | ||
| 1 | 0.39" | 0.39" | 30,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4376A44 | 00000 | ||
| 1 | 1/2" | 1/4" | 70,000 | Diamond | 2" | 150 (Smooth) Silver | 4490A112 | 00000 | ||
| 1 | 1/2" | 0.31" | 30,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4490A24 | 00000 | ||
| 1 | 1/2" | 1/2" | 70,000 | Diamond | 2" | 150 (Smooth) Silver | 4490A113 | 00000 | ||
| 1 | 0.59" | 0.39" | 20,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4376A46 | 00000 | ||
| 1 | 0.73" | 0.39" | 20,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4376A47 | 00000 | ||
Barrel
| | |
Style 2 | Style 4 | Style 9 |
Head | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Style | Dia. | Lg. | Max. Rotation Speed, rpm | Abrasive Material | Overall Lg. | Grit (Surface Texture) | Each | |||
For Grout, Carbide, Ceramics, and Glass | ||||||||||
1/8" Diameter Shank | ||||||||||
| 4 | 3/32" | 5/16" | 40,000 | Diamond | 2 1/2" | 120 (Smooth) Silver | 4490A101 | 000000 | ||
1/4" Diameter Shank | ||||||||||
| 9 | 3/32" | 5/16" | 40,000 | Diamond | 2 1/2" | 120 (Smooth) Silver | 4490A102 | 00000 | ||
| 9 | 3/16" | 5/16" | 40,000 | Diamond | 2 1/2" | 120 (Smooth) Silver | 4490A103 | 00000 | ||
For Carbide, Ceramics, and Glass | ||||||||||
1/8" Diameter Shank | ||||||||||
| 2 | 0.06" | 1/4" | 96,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4490A68 | 00000 | ||
| 2 | 0.13" | 1/4" | 96,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4490A34 | 00000 | ||
| 2 | 1/4" | 0.31" | 46,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4490A36 | 00000 | ||
| 2 | 0.31" | 0.31" | 46,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4490A67 | 00000 | ||
| 4 | 0.06" | 0.31" | 96,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4490A71 | 00000 | ||
| 4 | 0.08" | 0.31" | 96,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4490A72 | 00000 | ||
| 4 | 0.11" | 0.31" | 96,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4490A64 | 00000 | ||
1/4" Diameter Shank | ||||||||||
| 2 | 0.38" | 0.31" | 46,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4490A25 | 00000 | ||
| 2 | 1/2" | 0.31" | 30,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4490A26 | 00000 | ||
Flat-Top Cone
|
Style 8 |
Head | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Style | Dia. | Lg. | Max. Rotation Speed, rpm | Abrasive Material | Overall Lg. | Grit (Surface Texture) | Each | |||
For Carbide, Ceramics, and Glass | ||||||||||
1/4" Diameter Shank | ||||||||||
| 8 | 0.19" | 0.1" | 18,600 | Diamond | 2" | 120 (Smooth) Silver | 4490A29 | 000000 | ||
| 8 | 1/4" | 0.1" | 18,600 | Diamond | 2" | 120 (Smooth) Silver | 4490A31 | 00000 | ||
| 8 | 1/2" | 0.2" | 30,000 | Diamond | 2" | 120 (Smooth) Silver | 4490A32 | 00000 | ||
Taper
|
Style 5 |
Head | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Style | Dia. | Lg. | Max. Rotation Speed, rpm | Abrasive Material | Overall Lg. | Grit (Surface Texture) | Each | |||
For Carbide, Ceramics, and Glass | ||||||||||
1/8" Diameter Shank | ||||||||||
| 5 | 5/32" | 5/8" | 40,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4490A105 | 000000 | ||
| 5 | 0.16" | 0.23" | 96,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4490A59 | 00000 | ||
| 5 | 0.17" | 0.14" | 96,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4490A58 | 00000 | ||
| 5 | 0.19" | 0.38" | 96,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4490A61 | 00000 | ||
Ball
| |
Style 6 | Style 7 |
Head | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Style | Dia. | Lg. | Max. Rotation Speed, rpm | Abrasive Material | Overall Lg. | Grit (Surface Texture) | Each | |||
For Carbide, Ceramics, and Glass | ||||||||||
1/8" Diameter Shank | ||||||||||
| 6 | 0.06" | 0.06" | 96,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4490A42 | 000000 | ||
| 6 | 0.09" | 0.09" | 96,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4490A44 | 00000 | ||
| 6 | 0.13" | 0.13" | 96,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4490A45 | 00000 | ||
| 6 | 0.19" | 0.19" | 96,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4490A46 | 00000 | ||
| 6 | 1/4" | 1/4" | 46,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4490A47 | 00000 | ||
| 6 | 0.38" | 0.38" | 46,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4490A49 | 00000 | ||
| 7 | 1/32" | 1/32" | 40,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4490A104 | 00000 | ||
1/4" Diameter Shank | ||||||||||
| 6 | 1/2" | 1/2" | 30,000 | Diamond | 2 1/4" | 120 (Smooth) Silver | 4490A27 | 00000 | ||
Miniature Long-Life Grinding Bits for Nonmetals
 |  |  |  |  |
Style 1 | Style 2 | Style 3 | Style 4 | Style 5 |
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.
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.
Cylinder
|
Style 3 |
Head | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Style | Dia. | Lg. | Max. Rotation Speed, rpm | Abrasive Material | Shank Lg. | Grit (Surface Texture) | Each | |||
For Carbide, Ceramics, Composites, Fiberglass, Glass, Plastic, and Rubber | ||||||||||
3/32" Diameter Shank | ||||||||||
| 3 | 0.094" | 0.157" | 25,000 | Diamond | 1 5/8" | 100 (Smooth) Silver | 5548N12 | 000000 | ||
| 3 | 0.181" | 0.157" | 25,000 | Diamond | 1 5/8" | 100 (Smooth) Silver | 5548N11 | 00000 | ||
 |
A rotary tool chuck connects these bits to rotary tools that accept a 1/8" shank diameter. Swap out accessories on your Dremel without tools.
For Shank Dia. | Mfr. Model No. | For Mfr. Model No. | Mounting Hole Thread Size | Body Material | Jaw Material | Each | ||
|---|---|---|---|---|---|---|---|---|
| 1/32" to 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 | 4344A38 | 000000 |
Inverted Cone
|
Style 1 |
Head | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Style | Dia. | Lg. | Max. Rotation Speed, rpm | Abrasive Material | Shank Lg. | Grit (Surface Texture) | Each | |||
For Carbide, Ceramics, Composites, Fiberglass, Glass, Plastic, and Rubber | ||||||||||
3/32" Diameter Shank | ||||||||||
| 1 | 0.047" | 0.059" | 75,000 | Diamond | 1 3/4" | 120 (Smooth) Silver | 5548N21 | 000000 | ||
| 1 | 0.071" | 0.059" | 55,000 | Diamond | 1 3/4" | 120 (Smooth) Silver | 5548N22 | 00000 | ||
| 1 | 0.374" | 0.16" | 25,000 | Diamond | 1 5/8" | 100 (Smooth) Silver | 5548N14 | 00000 | ||
|
A rotary tool chuck connects these bits to rotary tools that accept a 1/8" shank diameter. Swap out accessories on your Dremel without tools.
For Shank Dia. | Mfr. Model No. | For Mfr. Model No. | Mounting Hole Thread Size | Body Material | Jaw Material | Each | ||
|---|---|---|---|---|---|---|---|---|
| 1/32" to 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 | 4344A38 | 000000 |
Taper
| |
Style 4 | Style 5 |
Head | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Style | Dia. | Lg. | Max. Rotation Speed, rpm | Abrasive Material | Shank Lg. | Grit (Surface Texture) | Each | |||
For Carbide, Ceramics, Composites, Fiberglass, Glass, Plastic, and Rubber | ||||||||||
3/32" Diameter Shank | ||||||||||
| 4 | 0.098" | 0.393" | 25,000 | Diamond | 1 3/8" | 100 (Smooth) Silver | 5548N15 | 000000 | ||
| 5 | 0.123" | 0.354" | 25,000 | Diamond | 1 3/8" | 100 (Smooth) Silver | 5548N23 | 00000 | ||
|
A rotary tool chuck connects these bits to rotary tools that accept a 1/8" shank diameter. Swap out accessories on your Dremel without tools.
For Shank Dia. | Mfr. Model No. | For Mfr. Model No. | Mounting Hole Thread Size | Body Material | Jaw Material | Each | ||
|---|---|---|---|---|---|---|---|---|
| 1/32" to 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 | 4344A38 | 000000 |
Ball
|
Style 2 |
Head | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Style | Dia. | Lg. | Max. Rotation Speed, rpm | Abrasive Material | Shank Lg. | Grit (Surface Texture) | Each | |||
For Carbide, Ceramics, Composites, Fiberglass, Glass, Plastic, and Rubber | ||||||||||
3/32" Diameter Shank | ||||||||||
| 2 | 0.051" | 0.051" | 70,000 | Diamond | 1 3/4" | 100 (Smooth) Silver | 5548N17 | 000000 | ||
| 2 | 0.075" | 0.075" | 45,000 | Diamond | 1 5/8" | 100 (Smooth) Silver | 5548N16 | 00000 | ||
| 2 | 0.091" | 0.091" | 40,000 | Diamond | 1 5/8" | 100 (Smooth) Silver | 5548N18 | 00000 | ||
| 2 | 0.138" | 0.138" | 25,000 | Diamond | 1 5/8" | 100 (Smooth) Silver | 5548N19 | 00000 | ||
| 2 | 0.169" | 0.169" | 25,000 | Diamond | 1 5/8" | 100 (Smooth) Silver | 5548N13 | 00000 | ||
|
A rotary tool chuck connects these bits to rotary tools that accept a 1/8" shank diameter. Swap out accessories on your Dremel without tools.
For Shank Dia. | Mfr. Model No. | For Mfr. Model No. | Mounting Hole Thread Size | Body Material | Jaw Material | Each | ||
|---|---|---|---|---|---|---|---|---|
| 1/32" to 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 | 4344A38 | 000000 |
