Weiler 98437 Cup Brush Brass Crimped 5/8 Inch

Product Description

The WEILER 98437 is a miniature crimped cup brush designed for light deburring, cleaning, and surface preparation on metal workpieces. It features 0.005-inch brass wire in a crimped fill pattern, which delivers consistent scrubbing action while reducing wire breakage during operation. The brush measures 5/8 inch in diameter with a 1/4-inch trim length and mounts via a 1/8-inch shank, making it compatible with rotary tools, die grinders, and flex-shaft machines. Rated to 37,000 RPM, it is suited for high-speed detailing work in tight or confined areas where a full-size cup brush cannot reach. Technicians and fabricators working on fine metal parts will find this brush appropriate for cleaning threads, ports, and small weld zones.

This cup brush is used in light-duty metal finishing applications across mechanical, plumbing, HVAC, and electrical trades. Its small diameter and shank mount make it a practical choice for cleaning copper fittings, electrical contacts, valve seats, and similar components before soldering, brazing, or assembly. The brass wire construction is non-sparking, which makes it appropriate for use near flammable residues or in environments where ferrous contamination must be avoided.

Key Features

• Crimped brass wire fill for consistent, flexible scrubbing action
• 0.005-inch wire diameter suited for fine surface cleaning without aggressive material removal
• 5/8-inch brush diameter for access in confined spaces
• 1/8-inch shank fits standard rotary tool and die grinder collets
• 37,000 RPM maximum rated speed for high-speed rotary tool use
• Non-sparking brass construction appropriate for sensitive work environments

Compatibility

Designed for use with rotary tools, die grinders, and flex-shaft machines accepting a 1/8-inch shank. Suitable for cleaning and surface preparation on copper, brass, aluminum, and other soft metals.

Installation Notes

This brush is installed and removed by a qualified technician using standard collet tooling on the host rotary tool or die grinder. Always confirm the host tool RPM rating meets or exceeds the 37,000 RPM maximum before mounting. Wear appropriate eye protection and secure the workpiece before operating. Do not exceed the rated RPM, and inspect the brush for wire fatigue or deformation before each use.