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The VALUE COLLECTION 516128 is a cylinder-shaped mounted polishing bob designed for precision surface finishing and polishing work on metals, plastics, and other materials. Constructed from rock-hard density wool felt, this bob delivers consistent, controlled polishing action in tight or contoured areas where larger tools cannot reach. The 1/8-inch shank fits standard rotary tool collets and flex-shaft machines, making it a practical choice for machinists, jewelers, and finishing technicians who need reliable, repeatable results on detailed workpieces.
This mounted polishing bob is suited for bench-top rotary tool work in machine shops, jewelry studios, tool-and-die operations, and general metalworking environments. It is well matched to applications requiring fine polishing, light deburring, or surface conditioning on small parts. The cylinder profile provides flat-face contact for working on flat surfaces, shoulders, and shallow recesses. It is typically used with polishing compounds applied directly to the felt surface before or during operation.
Designed for use with rotary tools and flex-shaft machines accepting a 1/8-inch shank. Suitable for use with standard polishing compounds on metal, plastic, and similar hard surfaces.
Installation is performed by inserting the 1/8-inch shank into a compatible collet and tightening securely before operation. Verify the rotary tool or flex-shaft machine is powered off and unplugged before mounting or removing the bob. Do not exceed the maximum RPM rating of the rotary tool or the bob manufacturer. Apply polishing compound to the felt surface as needed and allow the tool to reach operating speed before contacting the workpiece.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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