Value Collection 516137 Polishing Bob Cylinder Wool Felt

Product Description

The VALUE COLLECTION 516137 is a cylinder-shaped mounted polishing bob designed for precision surface finishing and polishing work on metals, plastics, and similar materials. Constructed from rock hard density wool felt, this bob delivers consistent contact pressure and abrasion for fine polishing, deburring, and surface preparation tasks. The 1/4 inch shank mounts directly to rotary tools, die grinders, and drill presses. With a maximum diameter of 1 inch and a head length of 2 inches, it provides a focused polishing surface suited to detailed work in tight areas. Machinists, toolmakers, and metalworking trades rely on this style of bob for finish work on bores, cavities, and contoured surfaces.

This mounted polishing bob is suited for use in machine shops, tool and die operations, jewelry finishing, and general metalworking environments. The cylinder profile makes it especially effective for polishing flat-bottomed holes, slots, and recessed surfaces where a tapered or ball-shaped bob would not maintain consistent contact. It is compatible with standard 1/4 inch collet rotary tools and die grinders commonly used in production and maintenance applications. The rock hard felt density resists compression under load, maintaining the bob shape through extended use.

Key Features

• Rock hard wool felt construction resists compression and holds shape during polishing
• Cylinder geometry provides uniform surface contact on flat and recessed areas
• 1/4 inch shank fits standard rotary tool and die grinder collets
• 2 inch head length allows reach into deeper cavities and bores
• 1 inch maximum diameter suited to detail and precision finishing work

Compatibility

Designed for use with rotary tools and die grinders equipped with a standard 1/4 inch collet or chuck, typical in metalworking, toolmaking, and surface finishing applications.

Installation Notes

A licensed machinist or metalworking technician should ensure the rotary tool or die grinder is fully powered off and unplugged before mounting or removing the bob. Insert the 1/4 inch shank fully into the collet and tighten securely before operation. Inspect the felt bob for wear or uneven compression before each use, and replace when the cylinder shape is no longer maintained. Always operate within the speed rating of the host tool and wear appropriate eye protection.