Weiler 31121 Wheel Brush 6 in Nylon 320 Grit Silicon Carbide

Product Description

The WEILER 31121 is a 6-inch crimped nylon wheel brush designed for surface finishing, deburring, and cleaning applications on bench grinders and straight grinders. Filled with silicon carbide nylon filament at 320 grit, it delivers fine abrasive action without aggressive material removal, making it well suited for light blending and polishing passes on metal and composite surfaces. The brush mounts via a round arbor hole and is rated to a maximum of 4,500 RPM. Trim length is 7/8 inches and face width is 5/8 inches. Installation is straightforward for machinists, fabricators, and maintenance technicians who use pedestal or straight grinder setups.

This wheel brush is intended for use on bench or pedestal grinders and straight grinders in light industrial, fabrication shop, and maintenance environments. Its fine 320-grit silicon carbide fill is appropriate for finishing softer metals, plastics, and composite materials where a coarser abrasive would cause unwanted damage. The crimped filament construction provides consistent, flexible contact across irregular surfaces, and the arbor hole mount makes for a tool-free or simple wrench installation on standard grinder arbors.

Key Features

• 6-inch outside diameter suits standard bench and pedestal grinder wheel guards
• 320-grit silicon carbide nylon fill delivers fine, controlled abrasive action
• Crimped filament construction provides flexible, even surface contact
• Round arbor hole mount with 5/8-inch face width for stable seating
• Rated to 4,500 RPM maximum for safe operation on bench and straight grinders
• Trim length of 7/8 inches provides adequate filament flex for light finishing work

Compatibility

Designed for use on bench grinders, pedestal grinders, and straight grinders equipped with a standard round arbor hole spindle; no shank is included. Verify arbor hole diameter and RPM rating of the host tool before installation.

Installation Notes

Installation should be performed by a qualified technician or machinist following the grinder manufacturer's wheel-mounting procedure. Always power down and lockout the grinder before mounting or removing the brush. Confirm the host tool's spindle speed does not exceed the 4,500 RPM maximum rating of this brush. Eye protection and appropriate PPE are required during operation per ANSI B7.1 and tool manufacturer guidelines.