Weiler 93641 Cup Brush 3 in Steel Crimped 14000 Rpm

Product Description

The WEILER 93641 is a crimped wire cup brush designed for surface preparation, weld cleaning, rust removal, and light deburring on metal workpieces. Built with steel fill wire at 0.0140 inches in diameter, the brush delivers consistent, controlled abrasion without excessive material removal. The 3-inch brush diameter and 1-inch trim length provide a stable, full-contact cutting action suited to angle grinders and die grinders equipped with a threaded arbor. The 3/8-24 threaded arbor mount provides a secure, direct connection to compatible spindle threads. Rated to 14000 RPM, this brush handles demanding workloads in fabrication, maintenance, and metal finishing applications. Installation is performed by licensed tradespeople and skilled fabricators working in metal shops, welding environments, and field service settings.

This cup brush is suited for use on structural steel, weld seams, pipe ends, and machined surfaces requiring scale removal or surface conditioning. It is commonly used in welding shops, HVAC sheet metal work, plumbing rough-in, and general industrial maintenance where a consistent, repeatable brush finish is required. The crimped wire construction offers a softer cut than knotted wire, making it appropriate for surfaces where edge definition and dimensional integrity must be preserved after cleaning.

Key Features

• 3-inch brush diameter for broad surface contact on flat and curved workpieces
• Crimped steel wire at 0.0140 inches diameter for controlled, consistent abrasion
• 1-inch trim length provides flex and durability during extended use
• 3/8-24 threaded arbor mount for direct spindle attachment on compatible grinders
• 14000 RPM maximum rating supports high-speed angle grinder and die grinder use

Compatibility

Designed for use with angle grinders and die grinders fitted with a 3/8-24 threaded spindle arbor. Verify that the tool spindle speed does not exceed the 14000 RPM maximum rating of this brush before use.

Installation Notes

Always power down and disconnect the grinder from its power source before mounting or removing the cup brush. Thread the brush onto the 3/8-24 spindle by hand and confirm it is fully seated before operation. Operators should wear appropriate PPE including a face shield, safety glasses, and gloves when using wire cup brushes. Do not exceed the 14000 RPM maximum rated speed marked on the brush.