Weiler 94685 Knotted Cup Brush 2-3/4 in Steel

Product Description

The WEILER 94685 is a knotted steel cup brush designed for aggressive surface preparation, weld cleaning, and rust or scale removal on metal surfaces. The knotted wire construction delivers greater impact force than crimped-wire designs, making it effective on heavy mill scale, slag, and stubborn coatings. Measuring 2-3/4 inches in diameter with a 0.020-inch wire diameter and a 1-inch trim length, this brush mounts via a 3/8-24 threaded arbor and is rated for a maximum of 14,000 RPM. It is used with angle grinders and small right-angle grinders common in fabrication, maintenance, and industrial cleaning applications.

This cup brush is suited for use in metal fabrication shops, structural steel work, pipeline maintenance, and general industrial settings where fast, consistent surface prep is required. The single-row knotted configuration concentrates wire contact for efficient material removal on flat and contoured surfaces. It is appropriate for use by ironworkers, welders, pipefitters, and maintenance mechanics working on ferrous metal substrates.

Key Features

• Knotted steel wire construction for high-impact, aggressive surface preparation
• 2-3/4 inch diameter with single-row configuration for concentrated contact
• 0.020-inch wire diameter balances stiffness and coverage
• 1-inch trim length provides consistent wire projection and wear life
• 3/8-24 threaded arbor for secure mounting on compatible angle grinders
• 14,000 RPM maximum rating for use with standard small angle grinders

Compatibility

Designed for use with angle grinders and right-angle grinders equipped with a 3/8-24 threaded spindle. Verify tool spindle thread size and maximum RPM rating before mounting.

Installation Notes

Installation and operation should be performed by qualified personnel familiar with abrasive wheel safety requirements. Always confirm the tool's free-speed RPM does not exceed the brush maximum rating of 14,000 RPM before mounting. Wear appropriate PPE including eye and face protection, gloves, and hearing protection when operating cup brushes at high speed. Inspect the brush for damaged or flared wires before each use and remove from service if any defects are found.