Rubber-Cushioned Abrasive Grinding Bits for Metals
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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 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 | ||||||||||
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Dia. | Lg. | Max. Speed, rpm | Shape No. | Shape | Material | Bond Material | Shank Lg. | Choose a Grit (Surface Texture) | Each | ||
For Aluminum, Brass, Bronze | |||||||||||
1/8" Shank Dia. | |||||||||||
1 | 1/8" | 1/4" | 35,000 | W142 | Cylindrical | Silicon Carbide | Rubber | 1 1/2" | 00000000 | 000000 | |
1 | 1/8" | 1/4" | 35,000 | W144 | Cylindrical | Silicon Carbide | Rubber | 1 1/2" | 00000000 | 00000 | |
1 | 1/8" | 3/8" | 105,000 | W145 | Cylindrical | Silicon Carbide | Rubber | 1 1/2" | 00000000 | 00000 | |
1 | 1/8" | 1/2" | 35,000 | W146 | Cylindrical | Silicon Carbide | Rubber | 1 1/2" | 00000000 | 00000 | |
1 | 3/16" | 1/2" | 70,500 | W154 | Cylindrical | Silicon Carbide | Rubber | 1 1/2" | 00000000 | 00000 | |
1 | 1/4" | 1/4" | 81,370 | W160 | Cylindrical | Silicon Carbide | Rubber | 1 1/2" | 00000000 | 00000 | |
1 | 1/4" | 1/2" | 60,000 | W163 | Cylindrical | Silicon Carbide | Rubber | 1 1/2" | 00000000 | 00000 | |
1 | 1/4" | 3/4" | 45,900 | W164 | Cylindrical | Silicon Carbide | Rubber | 1 1/2" | 00000000 | 00000 | |
1 | 3/8" | 3/8" | 54,000 | W175 | Cylindrical | Silicon Carbide | Rubber | 1 1/2" | 00000000 | 00000 | |
1 | 3/8" | 1" | 26,250 | W178 | Cylindrical | Silicon Carbide | Rubber | 1 1/2" | 00000000 | 00000 | |
1 | 1/2" | 3/8" | 41,020 | W184 | Cylindrical | Silicon Carbide | Rubber | 1 1/2" | 00000000 | 00000 | |
1 | 1/2" | 1/2" | 34,500 | W185 | Cylindrical | Silicon Carbide | Rubber | 1 1/2" | 00000000 | 00000 | |
2 | 1/4" | 5/8" | 60,000 | B53 | Taper | Silicon Carbide | Rubber | 1 1/2" | 00000000 | 00000 | |
3 | 5/16" | 3/8" | 68,400 | B104 | Inverted Cone | Silicon Carbide | Rubber | 1 1/2" | 00000000 | 00000 | |
4 | 3/16" | 3/16" | 104,250 | B123 | Ball | Silicon Carbide | Rubber | 1 1/2" | 00000000 | 00000 | |
5 | 3/16" | 5/16" | 35,000 | B45 | Cone | Silicon Carbide | Rubber | 1 1/2" | 00000000 | 00000 | |
6 | 1/8" | 1/4" | 35,000 | B96 | Flat-Top Cone | Silicon Carbide | Rubber | 1 1/2" | 00000000 | 00000 | |
6 | 1/8" | 3/8" | 35,000 | B97 | Flat-Top Cone | Silicon Carbide | Rubber | 1 1/2" | 00000000 | 00000 | |
7 | 1/8" | 5/16" | 35,000 | B46 | Oval | Silicon Carbide | Rubber | 1 1/2" | 00000000 | 00000 | |
1/4" Shank Dia. | |||||||||||
1 | 3/8" | 1/2" | 81,000 | W176 | Cylindrical | Silicon Carbide | Rubber | 1 1/2" | 00000000 | 00000 | |
1 | 1/2" | 1/2" | 61,500 | W185 | Cylindrical | Silicon Carbide | Rubber | 1 1/2" | 00000000 | 00000 | |
1 | 1/2" | 1" | 40,500 | W187 | Cylindrical | Silicon Carbide | Rubber | 1 1/2" | 00000000 | 00000 | |
1 | 3/4" | 1" | 34,500 | W205 | Cylindrical | Silicon Carbide | Rubber | 1 1/2" | 00000000 | 00000 | |
1 | 1" | 1" | 25,500 | W220 | Cylindrical | Silicon Carbide | Rubber | 1 1/2" | 00000000 | 00000 | |
1 | 1" | 1" | 34,500 | A38 | Cylindrical | Silicon Carbide | Rubber | 1 1/2" | 00000000 | 00000 | |
1 | 1" | 2" | 15,900 | W222 | Cylindrical | Silicon Carbide | Rubber | 1 1/2" | 00000000 | 00000 | |
1 | 2" | 1" | 19,100 | W242 | Cylindrical | Silicon Carbide | Rubber | 1 1/2" | 00000000 | 00000 | |
4 | 1/2" | 1/2" | 76,390 | B121 | Ball | Silicon Carbide | Rubber | 1 1/2" | 00000000 | 00000 | |
5 | 3/8" | 3/4" | 81,000 | B52 | Cone | Silicon Carbide | Rubber | 1 1/2" | 00000000 | 00000 | |
5 | 1/2" | 3/4" | 61,120 | B42 | Cone | Silicon Carbide | Rubber | 1 1/2" | 00000000 | 00000 | |
5 | 11/16" | 1 1/4" | 48,000 | A12 | Cone | Silicon Carbide | Rubber | 1 1/2" | 00000000 | 00000 | |
5 | 3/4" | 1 1/8" | 35,000 | A5 | Cone | Silicon Carbide | Rubber | 1 1/2" | 00000000 | 00000 | |
5 | 1 1/8" | 1 1/8" | 33,950 | A13 | Cone | Silicon Carbide | Rubber | 1 1/2" | 00000000 | 00000 | |
5 | 1 1/4" | 1 1/4" | 30,560 | A4 | Cone | Silicon Carbide | Rubber | 1 1/2" | 00000000 | 00000 | |
9 | 1/4" | 3/4" | 76,500 | A24 | Barrel | Silicon Carbide | Rubber | 1 1/2" | 00000000 | 00000 | |
10 | 7/8" | 2" | 19,860 | A11 | Cone | Silicon Carbide | Rubber | 1 1/2" | 00000000 | 00000 | |
11 | 1" | 2 3/4" | 16,100 | A3 | Cone | Silicon Carbide | Rubber | 1 1/2" | 00000000 | 00000 | |
12 | 1/4" | 1 1/16" | 35,000 | A15 | Taper | Silicon Carbide | Rubber | 1 1/2" | 00000000 | 00000 |
Rubber-Cushioned Abrasive Grinding Bit Sets for Metals
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The bits in this set have rubber blended into the abrasive, which cushions during grinding to produce a smooth to extra-smooth surface texture.
Aluminum oxide bits are for grinding hard metals.
Silicon carbide bits are for grinding soft metals.
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.
Abrasive | |||||||
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No. of Pieces | Includes | Max. Speed, rpm | Material | Bond Material | Grit (Surface Texture) | Each | |
For Steel, Aluminum, Brass, Bronze | |||||||
126 | 30 Silicon Carbide and 10 Aluminum Oxide 15/16" Lg. x 1/4" Dia. Bits,30 Silicon Carbide and 10 Aluminum Oxide 7/8" Dia. Tapered-Edge Discs,30 Silicon Carbide and 10 Aluminum Oxide 7/8" Dia. x 1/8" Thick Straight Discs,Two Spiral Mandrels with Hex Nut,Four 1/8" Dia. Mandrels,Paper and Plastic Case | 21,000 | Aluminum Oxide, Silicon Carbide | Rubber | 120 (Smooth) to 240 (Extra Smooth) | 0000000 | 000000 |
For Steel, Aluminum, Brass, Bronze, Copper, Stainless Steel, Iron, Nickel, Titanium | |||||||
68 | 8 each: No. 4, No. 6, No. 8, No. 10, No. 11, No. 12, No. 14, and No. 15 Grinding Bits,Two No. 4 Mandrels,Two No. 6 Mandrels,Plastic Case | 25,000 | Silicon Carbide | Rubber | 46 (Rough) to 240 (Extra Smooth) | 0000000 | 000000 |
Rubber-Cushioned Abrasive Grinding Bits without Shank for Metals
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Bits thread onto shanks so you can quickly switch head shapes without removing the shank. The abrasive grains are blended with rubber, which cushions during grinding to produce a smoother surface texture than other bits with similar grits.
Bits are silicon carbide, which cuts through soft metals without generating much heat or causing material buildup. 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.
Bits | |||||||||||||
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Head | Abrasive | Shanks | |||||||||||
Dia. | Lg. | Arbor Hole Thread Size | Max. Speed, rpm | Shape | Material | Bond Material | Choose a Grit (Surface Texture) | Pkg. Qty. | Pkg. | Each | |||
For Aluminum, Brass, Bronze | |||||||||||||
1 | 1/4" | 7/8" | 2-56 | 20,000 | Cylindrical | Silicon Carbide | Rubber | 10 | 0000000 | 00000 | 0000000 | 00000 | |
Each | Each | ||||||||||||
1 | 7/8" | 1" | 1/4"-20 | 20,000 | Cylindrical | Silicon Carbide | Rubber | __ | 0000000 | 00000 | 0000000 | 00000 | |
Pkg. | Each | ||||||||||||
2 | 9/32" | 1" | 2-56 | 20,000 | Taper | Silicon Carbide | Rubber | 10 | 0000000 | 0000 | 0000000 | 0000 | |
2 | 3/8" | 5/8" | 2-56 | 20,000 | Taper | Silicon Carbide | Rubber | 10 | 0000000 | 0000 | 0000000 | 0000 | |
2 | 3/8" | 1" | 5-40 | 20,000 | Taper | Silicon Carbide | Rubber | 10 | 0000000 | 00000 | 0000000 | 0000 | |
Each | Each | ||||||||||||
3 | 7/8" | 1 1/4" | 1/4"-20 | 20,000 | Cone | Silicon Carbide | Rubber | __ | 0000000 | 00000 | 0000000 | 00000 | |
4 | 7/8" | 1 1/4" | 1/4"-20 | 20,000 | Cone | Silicon Carbide | Rubber | __ | 0000000 | 00000 | 0000000 | 00000 |
Rubber-Cushioned Abrasive Grinding Discs without Shank for Metals
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The abrasive grains in these discs are blended with rubber, which cushions during grinding to produce a smoother surface texture than other discs with similar grits. Discs attach to your grinder with a shank.
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.
Discs | |||||||||||
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Abrasive | Shanks | ||||||||||
Dia. | Thick. | Arbor Hole Size | Max. Speed, rpm | Shape | Material | Bond Material | Choose a Grit (Surface Texture) | Each | Each | ||
For Steel, Aluminum, Brass, Bronze | |||||||||||
Unthreaded Arbor Hole | |||||||||||
5/8" | 1/4" | 1/16" | 24,000 | Disc | Aluminum Oxide/Silicon Carbide Blend | Rubber | 0000000 | 00000 | 0000000 | 000000 | |
7/8" | 1/4" | 1/16" | 24,000 | Disc | Aluminum Oxide/Silicon Carbide Blend | Rubber | 0000000 | 0000 | 0000000 | 00000 | |
1" | 1/4" | 1/8" | 20,000 | Disc | Aluminum Oxide/Silicon Carbide Blend | Rubber | 0000000 | 0000 | 0000000 | 00000 | |
1 1/2" | 1/2" | 1/4" | 15,000 | Disc | Aluminum Oxide/Silicon Carbide Blend | Rubber | 0000000 | 00000 | 0000000 | 00000 | |
2" | 3/8" | 1/4" | 10,500 | Disc | Aluminum Oxide/Silicon Carbide Blend | Rubber | 0000000 | 00000 | 0000000 | 00000 | |
3" | 1/2" | 1/4" | 7,000 | Disc | Silicon Carbide | Rubber | 0000000 | 00000 | 0000000 | 00000 |
Grinding Bit Sets for Metals
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Each set contains a selection of grinding bits. All include bits made of aluminum oxide, which is the most common abrasive used for grinding metal. These bits are also known as mounted points and die grinder bits.
Sets for steel, stainless steel, aluminum, brass, bronze, copper, iron, and nickel contain bits made from a range of abrasive materials in different shapes and sizes. They’ll help you achieve varying levels of finish on a wide range of materials. Cotton laminate/aluminum oxide blend bits remove more material than rubber-cushioned aluminum oxide bits, and they’ll create a nicer finish than vitrified ceramic alumina bits. Bits with nylon mesh remove the least material but create the nicest finish.
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.
Abrasive | ||||||||
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No. of Pieces | Includes | Material | Bond Material | Shank Lg. | Color | Grit (Surface Texture) | Each | |
For Steel, Stainless Steel, Aluminum, Brass, Bronze, Copper, Iron, Nickel | ||||||||
1/8" Shank Dia. | ||||||||
72 | Cardboard Block Stand; B121 (14 total, 60-240 grit); B132 (9 total, 60-80 grit); B52 (16 total, 60-240 grit); W154 (9 total, 60-100 grit); W182 (9 total, 60-80 grit); W185 (15 total, 60-240 grit) | Aluminum Oxide Ceramic Cotton Laminate/Aluminum Oxide Blend Nylon Mesh/Aluminum Oxide Blend Nylon Mesh/Silicon Carbide Blend | Rubber Synthetic Resin Vitrified Ceramic | 1 1/2" | Black, Blue, Brown, Gray, Pink, White | 60 (Rough), 80 (Smooth), 100 (Smooth) | 0000000 | 0000000 |
Miniature Bit and Disc Sets
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Sets contain an assortment of tools for grinding, sanding, and cutting on small surface areas. All have aluminum oxide bits for grinding hard metal.
134-piece sets include silicone carbide bits for grinding soft metal.
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.
No. of Pieces | Includes | Max. Speed, rpm | Abrasive Material | Color | Each | |
For Steel, Aluminum, Brass, Bronze | ||||||
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1/8" Shank Dia. | ||||||
134 | Six Aluminum Oxide Grinding Bits, Four Silicon Carbide Grinding Bits, Six Aluminum Oxide Grinding Discs, 16 Aluminum Oxide Sanding Bands, One Rubber Drum for Sanding Bands, 64 Cutoff Discs, 36 Cutoff Wheels, One Mandrel for Cutoff and Sanding Discs, Plastic Case | 30,000 | Aluminum Oxide, Silicon Carbide | Brown, Gray | 0000000 | 000000 |
Grinding and Polishing Kits for 3D Printed Parts
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Finish the edges of metal, polymer, and plastic 3D printed parts with the bits, burs, wheels, and brushes in these kits.
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.
No. of Pieces | Includes | Max. Speed, rpm | Abrasive Material | Grit (Surface Texture) | Each | |
For Steel, Stainless Steel, Aluminum, Brass, Bronze, Copper, Iron, Nickel, Titanium, Fiberglass, Plastic, Rubber | ||||||
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3/32" Shank Dia. | ||||||
25 | Three Diamond Grinding Bits, Three Carbide Burs, Two Aluminum Oxide Polishing Bobs, Two Aluminum Oxide Grinding Wheels, Two Silicon Carbide Grinding Wheels, One Diamond Cutoff Wheel, One Mandrel with 3/32" Shank, Three Engraving Cutters, Eight Aluminum Oxide Wheel Brushes, Metal Case | 21,000 | Aluminum Oxide, Carbide, Diamond, Silicon Carbide | 80 (Smooth) to 280 (Extra Smooth) | 000000 | 0000000 |
Nylon Mesh Cushioned Sanding Bits
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The abrasive-embedded mesh construction gives you more control over sanding pressure, creating finer and more consistent finishes in small, recessed, and hard-to-reach areas.
Fine grade is for light blending and finishing.
For technical drawings and 3-D models, click on a part number.
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Shape Number | Dia. | Lg. | Nylon Mesh Grade | For Finish | Max. Speed, rpm | Color | Abrasive Material | Abrasive Backing Material | For Use On | For Use With | Each | |
Style A | ||||||||||||
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B90 | 1/2" | 1/2" | Fine | Extra Smooth | 34,500 | Gray | Silicon Carbide | Nylon Mesh | Steel, Wood | Drills, Grinders for Bits and Burs | 00000000 | 00000 |
Style B | ||||||||||||
B121 | 1/2" | 1/2" | Fine | Extra Smooth | 45,300 | Gray | Silicon Carbide | Nylon Mesh | Steel, Wood | Drills, Grinders for Bits and Burs | 00000000 | 0000 |
Style C | ||||||||||||
B52 | 3/8" | 3/4" | Fine | Extra Smooth | 45,300 | Gray | Silicon Carbide | Nylon Mesh | Steel, Wood | Drills, Grinders for Bits and Burs | 00000000 | 0000 |
Style D | ||||||||||||
W160 | 1/4" | 1/4" | Fine | Extra Smooth | 81,300 | Gray | Silicon Carbide | Nylon Mesh | Steel, Wood | Drills, Grinders for Bits and Burs | 00000000 | 0000 |
W163 | 1/4" | 1/2" | Fine | Extra Smooth | 60,000 | Gray | Silicon Carbide | Nylon Mesh | Steel, Wood | Drills, Grinders for Bits and Burs | 00000000 | 0000 |
W183 | 1/2" | 1/4" | Fine | Extra Smooth | 51,700 | Gray | Silicon Carbide | Nylon Mesh | Steel, Wood | Drills, Grinders for Bits and Burs | 00000000 | 0000 |
W185 | 1/2" | 1/2" | Fine | Extra Smooth | 34,500 | Gray | Silicon Carbide | Nylon Mesh | Steel, Wood | Drills, Grinders for Bits and Burs | 00000000 | 0000 |
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Shape Number | Dia. | Lg. | Nylon Mesh Grade | For Finish | Max. Speed, rpm | Color | Abrasive Material | Abrasive Backing Material | For Use On | For Use With | Each | |
Style A | ||||||||||||
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A21 | 1" | 1" | Fine | Extra Smooth | 34,500 | Gray | Silicon Carbide | Nylon Mesh | Steel, Wood | Drills, Grinders for Bits and Burs | 00000000 | 000000 |
Style B | ||||||||||||
A25 | 1" | 1" | Fine | Extra Smooth | 35,600 | Gray | Silicon Carbide | Nylon Mesh | Steel, Wood | Drills, Grinders for Bits and Burs | 00000000 | 00000 |
Style D | ||||||||||||
W220 | 1" | 1" | Fine | Extra Smooth | 25,500 | Gray | Silicon Carbide | Nylon Mesh | Steel, Wood | Drills, Grinders for Bits and Burs | 00000000 | 0000 |