Value Collection 516103 Polishing Bob Knife Edge Wheel

Product Description

The VALUE COLLECTION 516103 is a mounted polishing bob designed for precision polishing, deburring, and finishing work on metal, wood, and composite surfaces. Built in a knife edge wheel shape, this bob reaches tight contours, grooves, and detailed profiles that flat or cylindrical media cannot access. The bob is constructed from hard-density wool felt, which holds compound well and delivers consistent surface contact. With a 3/32-inch shank diameter and a shank length of 2 inches, it mounts directly in standard rotary tools, flexible shafts, and die grinders used by machinists, jewelers, and finishing technicians.

This polishing bob is suited for bench-top and handheld rotary tool applications in light manufacturing, toolmaking, jewelry finishing, and metal fabrication. The knife edge wheel profile is particularly effective for polishing inside channels, ring shanks, engraved surfaces, and narrow slots. It is sized for detail work rather than bulk stock removal, making it a finishing-stage consumable in both shop and field environments.

Key Features

• Knife edge wheel shape accesses tight grooves, profiles, and contoured surfaces
• Hard-density wool felt construction holds polishing compound and maintains shape under load
• 3/32-inch shank diameter fits standard rotary tool collets and flexible shaft handpieces
• 7/8-inch maximum diameter suited for detail and precision finishing work
• 2-inch shank length provides clearance for recessed work areas
• 1/4-inch head length keeps the working surface compact and controllable

Compatibility

Designed as a standard mounted polishing bob for use with rotary tools, die grinders, and flexible shaft machines accepting a 3/32-inch shank collet.

Installation Notes

Installation is performed by inserting the 3/32-inch shank into a compatible collet and tightening securely before operation. Confirm that the tool is powered off and unplugged or the collet is fully released before changing bobs. Apply polishing compound directly to the felt face prior to use and do not exceed the maximum RPM rating of the rotary tool or flexible shaft unit. Inspect the bob for fraying or uneven wear before each use and replace if the felt shows significant deterioration.