Value Collection 516172 Polishing Bob Ball 0.5in Wool Felt

Product Description

The VALUE COLLECTION 516172 is a mounted polishing bob in a ball shape, designed for fine polishing and finishing work on metal, wood, and similar surfaces. Constructed from hard-density wool felt, this bob delivers consistent surface contact and controlled material removal when used with polishing compounds. The 0.5-inch maximum diameter head mounts on a 0.125-inch shank, making it compatible with rotary tools, die grinders, and flex-shaft machines. Machinists, tool-and-die workers, jewelers, and general fabricators use this type of bob for detail polishing in recesses, bores, and contoured surfaces where larger abrasive media cannot reach.

This polishing bob is suited for bench-top and handheld rotary tool applications in machine shops, maintenance facilities, and fabrication environments. The ball shape conforms to curved and concave surfaces, making it effective for deburring, compound polishing, and pre-plate finishing on small parts. The 2-inch shank length provides adequate reach into recessed workpiece features. Sold individually, it is appropriate as a replacement or supplemental bob for existing rotary tool setups.

Key Features

• Ball-shape head for polishing curved, concave, and recessed surfaces
• Hard-density wool felt construction for firm surface contact with polishing compounds
• 0.5-inch maximum diameter suits fine detail and small-bore polishing tasks
• 0.125-inch shank diameter fits standard rotary tool and die grinder collets
• 2-inch shank length provides reach into recessed workpiece geometry
• Lightweight at 0.006 pounds, minimizing spindle load on small rotary tools

Compatibility

Designed as a standard-shank mounted polishing bob compatible with rotary tools, die grinders, and flex-shaft machines accepting a 0.125-inch collet or chuck.

Installation Notes

Installation is performed by inserting the shank into the collet or chuck of the rotary tool and tightening securely before operation. Ensure the tool is powered off and unplugged before mounting or removing the bob. Verify that the tool spindle speed is appropriate for felt polishing bobs and the polishing compound in use. Inspect the bob for wear or asymmetry before each use, and replace if the felt shows significant deformation that could cause imbalance.