21074 - Weiler 1/2" Round Power Tube Brush, .005" Steel Wire, 3/16" Stem

Precision Internal Cleaning and Deburring

The Weiler 21074 1/2" Round Power Tube Brush is an industrial-grade abrasive accessory engineered for the demanding tasks of cleaning and deburring smooth or threaded blind holes. Manufactured with a single continuous length of stainless steel stem wire, this brush offers exceptional structural integrity, reducing the risk of stem failure during high-speed operation. The fill consists of .005" crimped steel wire arranged in a single spiral, a configuration that optimizes flexibility and allows the brush to conform to internal surface irregularities without being overly aggressive.

Designed for versatility in machining and maintenance applications, this tube brush features a standard 3/16" stem diameter. This ensures seamless compatibility with a wide array of power equipment, including CNC machining centers, milling machines, automatic machines, drill presses, and handheld corded or cordless drills. With a maximum operating speed of 2000 RPM, it provides efficient material removal and surface conditioning without compromising the dimensional tolerance of the workpiece.

This tool is particularly effective on ferrous metals, including standard steel, armored steel, cast iron, ductile iron, and tool steel. Whether used for removing machining burrs from internal threads or cleaning out debris and rust from blind holes in facility maintenance, the Weiler 21074 delivers consistent performance. Its compact 1-inch brush length and 3.5-inch overall length allow for access into confined spaces, making it an essential component for precision finishing operations.