Filter by
Product Family
For Finish
Abrasive Material
Grit Rating
Rotation Speed
DFARS Specialty Metals
Export Control Classification Number (ECCN)
RoHS
Maximum Rotation Speed
About Polishing Stones and Bobs
%20--%3e%3csvg%20version='1.1'%20id='Layer_1'%20xmlns='http://www.w3.org/2000/svg'%20xmlns:xlink='http://www.w3.org/1999/xlink'%20x='0px'%20y='0px'%20viewBox='0%200%20400%20400'%20style='enable-background:new%200%200%20400%20400;'%20xml:space='preserve'%3e%3cstyle%20type='text/css'%3e%20.st0{fill:%231A70A0;}%20.st1{opacity:0.5;}%20%3c/style%3e%3cg%3e%3cg%3e%3cpath%20class='st0'%20d='M200,56.9c38.35,0,74.4,14.93,101.51,42.05c27.11,27.11,42.05,63.17,42.05,101.51s-14.93,74.4-42.05,101.51%20S238.35,344.02,200,344.02s-74.4-14.93-101.51-42.05c-27.11-27.11-42.05-63.17-42.05-101.51s14.93-74.4,42.05-101.51%20S161.65,56.9,200,56.9%20M200,12.9C96.41,12.9,12.44,96.88,12.44,200.46c0,103.59,83.97,187.56,187.56,187.56%20c103.59,0,187.56-83.97,187.56-187.56C387.56,96.88,303.59,12.9,200,12.9L200,12.9z'/%3e%3c/g%3e%3cg%3e%3cg%20class='st1'%3e%3cpath%20class='st0'%20d='M235.49,152.24h16.15l-27.46,111.87c-1.94,7.8-2.91,12.5-2.91,14.1c0,1.82,0.58,3.29,1.73,4.41%20c1.16,1.12,2.69,1.68,4.61,1.68c5.23,0,11.78-3.85,19.63-11.55l17.22,21.34c-16.95,17.33-34.87,26-53.78,26%20c-8.37,0-15.45-1.47-21.23-4.41c-5.79-2.94-10.44-7.25-13.95-12.92c-3.51-5.67-5.27-11.18-5.27-16.53c0-1.93,0.35-5.24,1.05-9.94%20c1-6.94,2.05-12.54,3.15-16.82l15.22-62.15h-32.69l7.65-30.97C190.89,163.58,214.53,158.88,235.49,152.24z%20M230.44,80.84%20c8.24,0,14.66,2.62,19.26,7.86c4.6,5.24,6.9,11.55,6.9,18.94c0,5.46-1.42,10.7-4.25,15.73c-2.83,5.03-6.88,9.07-12.12,12.12%20c-5.24,3.05-10.33,4.57-15.24,4.57c-4.6,0-9.17-1.23-13.72-3.69c-4.55-2.46-8.02-5.78-10.43-9.95%20c-2.41-4.17-3.61-8.67-3.61-13.48c0-5.35,1.52-10.64,4.57-15.89c3.05-5.24,7.03-9.25,11.96-12.04%20C218.68,82.23,224.24,80.84,230.44,80.84z'/%3e%3c/g%3e%3cg%3e%3cpath%20class='st0'%20d='M214.08,152.24h16.15l-27.46,111.87c-1.94,7.8-2.91,12.5-2.91,14.1c0,1.82,0.58,3.29,1.73,4.41%20c1.16,1.12,2.69,1.68,4.61,1.68c5.23,0,11.78-3.85,19.63-11.55l17.22,21.34c-16.95,17.33-34.87,26-53.78,26%20c-8.37,0-15.45-1.47-21.23-4.41c-5.79-2.94-10.44-7.25-13.95-12.92c-3.51-5.67-5.27-11.18-5.27-16.53c0-1.93,0.35-5.24,1.05-9.94%20c1-6.94,2.05-12.54,3.15-16.82l15.22-62.15h-32.69l7.65-30.97C169.48,163.58,193.11,158.88,214.08,152.24z%20M209.03,80.84%20c8.24,0,14.66,2.62,19.26,7.86c4.6,5.24,6.9,11.55,6.9,18.94c0,5.46-1.42,10.7-4.25,15.73c-2.83,5.03-6.88,9.07-12.12,12.12%20c-5.24,3.05-10.33,4.57-15.24,4.57c-4.6,0-9.17-1.23-13.72-3.69c-4.55-2.46-8.02-5.78-10.43-9.95%20c-2.41-4.17-3.61-8.67-3.61-13.48c0-5.35,1.52-10.64,4.57-15.89c3.05-5.24,7.03-9.25,11.96-12.04%20C197.26,82.23,202.83,80.84,209.03,80.84z'/%3e%3c/g%3e%3c/g%3e%3c/g%3e%3c/svg%3e){kind=small}
Match grit size and micron ratings to the texture, appearance, and flatness you need to achieve.
No-Mess Polishing Bobs for Soft Metals and Nonmetals
 |  |
Cylinder with Flat Tip | Cylinder with Round Tip |
 |  |
Cylinder with Pointed Tip | Oval with Round Tip |
 |  |
Cone with Round Tip | Tear Drop with Pointed Tip |
Forget the mess—polish soft metals and nonmetals without compounds. These bobs are embedded with silicon carbide abrasive, which generates minimal heat to reduce material buildup. That makes them best for polishing soft materials prone to clogging, such as aluminum and plastic. All cut fast and with light pressure. Use them to polish small areas and hard-to-reach spots with a drill or grinder for bits and burs. Grit is approximate.
Wool Felt—Softer than rubber, these bobs better conform to your work surface and prevent gouging. They're the best choice for final finishing steps.
Neoprene—These bobs balance durability with flexibility. They last longer than felt bobs and conform to surfaces better than polyurethane rubber.
Head | Each | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Dia. | Lg. | Shank Dia. | Max. Rotation Speed, rpm | Material | Grit | 1-9 | 10-Up | |||
Silicon Carbide Abrasive—For Aluminum, Brass, Bronze, Copper, and Plastic | ||||||||||
Cylinder with Flat Tip | ||||||||||
| 1/4" | 1/4" | 1/8" | 15,000 | Wool Felt | 400 (Extra Smooth) | 4564A81 | 00000 | 00000 | ||
| 1/4" | 7/16" | 3/32" | 30,000 | Neoprene | 400 (Extra Smooth) | 4958A53 | 0000 | 0000 | ||
| 1/2" | 1/2" | 1/8" | 15,000 | Wool Felt | 400 (Extra Smooth) | 4564A82 | 0000 | 0000 | ||
| 1/2" | 3/4" | 1/8" | 4,500 | Neoprene | 400 (Extra Smooth) | 4944A23 | 0000 | 0000 | ||
| 3/4" | 3/4" | 1/8" | 15,000 | Wool Felt | 400 (Extra Smooth) | 4564A83 | 0000 | 0000 | ||
Cylinder with Round Tip | ||||||||||
| 3/16" | 7/16" | 3/32" | 30,000 | Neoprene | 400 (Extra Smooth) | 4958A56 | 0000 | 0000 | ||
| 1/4" | 5/8" | 3/32" | 30,000 | Neoprene | 400 (Extra Smooth) | 4958A55 | 0000 | 0000 | ||
| 3/8" | 1/2" | 1/8" | 15,000 | Wool Felt | 400 (Extra Smooth) | 4564A87 | 0000 | 0000 | ||
| 3/8" | 5/8" | 1/8" | 4,500 | Neoprene | 400 (Extra Smooth) | 4944A22 | 0000 | 0000 | ||
Cylinder with Pointed Tip | ||||||||||
| 7/16" | 3/4" | 1/8" | 4,500 | Neoprene | 400 (Extra Smooth) | 4944A24 | 0000 | 0000 | ||
Oval with Round Tip | ||||||||||
| 3/8" | 1" | 1/8" | 4,500 | Neoprene | 400 (Extra Smooth) | 4944A25 | 0000 | 0000 | ||
| 9/16" | 11/16" | 1/8" | 4,500 | Neoprene | 400 (Extra Smooth) | 4944A21 | 0000 | 0000 | ||
Cone with Round Tip | ||||||||||
| 3/8" | 1/2" | 1/8" | 15,000 | Wool Felt | 400 (Extra Smooth) | 4564A84 | 0000 | 0000 | ||
| 1/2" | 1" | 1/8" | 15,000 | Wool Felt | 400 (Extra Smooth) | 4564A85 | 0000 | 0000 | ||
| 3/4" | 1 1/2" | 1/4" | 15,000 | Wool Felt | 400 (Extra Smooth) | 4564A86 | 0000 | 0000 | ||
Tear Drop with Pointed Tip | ||||||||||
| 1/4" | 1/2" | 3/32" | 30,000 | Neoprene | 400 (Extra Smooth) | 4958A54 | 0000 | 0000 | ||
No-Mess Polishing Bobs for Steel
 |  |
Cylinder with Flat Tip | Cylinder with Round Tip |
| |
Cylinder with Pointed Tip | Oval with Round Tip |
 | |
Cone with Round Tip | Tear Drop with Pointed Tip |
Skip the messy compounds—these bobs come embedded with aluminum oxide, the most common abrasive material. Best for polishing steel, they’re also a good all-purpose option for other materials when specialty bobs aren’t available. Use them to polish small areas and hard-to-reach spots with a drill or grinder for bits and burs. Grit is approximate.
Polyurethane Rubber—Harder than neoprene and wool felt, these bobs hold their shape longer, even during heavy use.
Neoprene—These bobs balance durability with flexibility. They last longer than felt bobs and conform to surfaces better than polyurethane rubber.
Head | Each | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Dia. | Lg. | Shank Dia. | Max. Rotation Speed, rpm | Material | Grit | 1-9 | 10-Up | |||
Aluminum Oxide Abrasive—For Steel | ||||||||||
Cylinder with Flat Tip | ||||||||||
| 1/4" | 1/4" | 1/8" | 15,000 | Polyurethane Rubber | 400 (Extra Smooth) | 7803T26 | 00000 | 00000 | ||
| 1/4" | 7/16" | 3/32" | 30,000 | Neoprene | 400 (Extra Smooth) | 4958A43 | 0000 | 0000 | ||
| 1/2" | 1/2" | 1/8" | 15,000 | Polyurethane Rubber | 400 (Extra Smooth) | 7803T32 | 0000 | 0000 | ||
| 1/2" | 3/4" | 1/8" | 4,500 | Neoprene | 400 (Extra Smooth) | 4944A13 | 0000 | 0000 | ||
Cylinder with Round Tip | ||||||||||
| 3/8" | 1/2" | 1/8" | 15,000 | Polyurethane Rubber | 400 (Extra Smooth) | 7803T51 | 0000 | 0000 | ||
| 3/8" | 5/8" | 1/8" | 4,500 | Neoprene | 400 (Extra Smooth) | 4944A12 | 0000 | 0000 | ||
Cylinder with Pointed Tip | ||||||||||
| 3/16" | 7/16" | 3/32" | 30,000 | Neoprene | 400 (Extra Smooth) | 4958A46 | 0000 | 0000 | ||
| 1/4" | 5/8" | 3/32" | 30,000 | Neoprene | 400 (Extra Smooth) | 4958A45 | 0000 | 0000 | ||
| 7/16" | 3/4" | 1/8" | 4,500 | Neoprene | 400 (Extra Smooth) | 4944A14 | 0000 | 0000 | ||
Oval with Round Tip | ||||||||||
| 3/8" | 1" | 1/8" | 4,500 | Neoprene | 400 (Extra Smooth) | 4944A15 | 0000 | 0000 | ||
| 9/16" | 11/16" | 1/8" | 4,500 | Neoprene | 400 (Extra Smooth) | 4944A11 | 0000 | 0000 | ||
Cone with Round Tip | ||||||||||
| 3/8" | 1/2" | 1/8" | 15,000 | Polyurethane Rubber | 400 (Extra Smooth) | 7803T87 | 0000 | 0000 | ||
Tear Drop with Pointed Tip | ||||||||||
| 1/4" | 1/2" | 3/32" | 30,000 | Neoprene | 400 (Extra Smooth) | 4958A44 | 0000 | 0000 | ||
