Weiler 90318 Cup Brush 2-3/4 in Crimped Steel Wire

Product Description

The WEILER 90318 is a crimped wire cup brush designed for surface preparation, weld cleaning, rust removal, and scale removal on metal workpieces. The brush measures 2.75 inches in diameter and uses 0.0118-inch diameter crimped steel wire fill. A 1/4-inch shank arbor mounts directly into standard rotary tools, angle grinders, or drill chucks, making this a straightforward fit for fabricators, pipefitters, ironworkers, and general maintenance technicians. The crimped wire configuration delivers a consistent, flexible cutting action suitable for contoured or irregular surfaces. Maximum rated speed is 6,000 RPM. Package includes one brush.

This cup brush is suited for light to medium-duty deburring, rust removal, paint stripping, and weld prep on ferrous metal surfaces. The 1/4-inch shank allows use with standard handheld drills and die grinders. The 7/8-inch trim length provides adequate wire exposure for controlled material removal without excessive deflection. Typical applications include job-site metalwork, shop fabrication, and maintenance welding where a portable, small-diameter cup brush is required.

Key Features

• 2.75-inch brush diameter for targeted surface preparation
• 0.0118-inch crimped steel wire fill for flexible, consistent contact
• 1/4-inch shank arbor for compatibility with standard drills and die grinders
• 7/8-inch trim length for controlled wire deflection during use
• Rated to 6,000 RPM maximum operating speed

Compatibility

Designed for use with rotary tools, handheld drills, and die grinders fitted with a 1/4-inch chuck or collet. No specific OEM system compatibility was stated in the product data.

Installation Notes

Installation and use should be performed by qualified personnel familiar with abrasive brush safety standards. Always verify the tool spindle speed does not exceed the 6,000 RPM maximum rating of the brush before operation. Secure the 1/4-inch shank fully into the chuck or collet and confirm it is tightened before powering the tool. Wear appropriate PPE including eye protection and gloves when operating wire cup brushes.