Weiler 21143 Power Tube Brush 9/16 Inch Steel Wire

Product Description

The WEILER 21143 is a round power tube brush designed for cleaning and deburring smooth or threaded blind holes in steel parts. The brush head measures 9/16 inches in diameter with a 1-inch brush length, filled with a single spiral of crimped 0.005-inch steel wire. This spiral fill pattern delivers a more flexible brushing action than rigid-fill alternatives, helping techs and machinists reach into confined bore geometry without aggressive material removal. The unthreaded 3/16-inch stem is 2.5 inches long and constructed from stainless steel, making it compatible with standard drill chucks on corded and cordless tools.

This tube brush is suited for manufacturing and maintenance environments where bore cleanliness and surface prep are required before assembly or inspection. Typical applications include deburring drilled holes, removing chips and scale from threaded blind holes, and light surface cleaning inside tubing or cylindrical passages on steel workpieces. It is sized for use in hand drills, drill presses, drilling machines, and CNC or milling machines operating within the rated speed range. Sold individually, it is well matched to bench-level repair work as well as automated machine tooling setups.

Key Features

• 9/16-inch brush diameter with single spiral crimped steel wire fill for flexible bore contact
• 0.005-inch fill wire diameter for light cleaning and deburring without aggressive stock removal
• 3/16-inch unthreaded stainless steel stem fits standard drill chucks on corded and cordless tools
• 2.5-inch stem length provides reach into deep blind holes
• Rated to 2000 RPM for safe use in hand drills, drill presses, and CNC equipment
• Meets ANSI Standard B165.1 and is RoHS compliant

Compatibility

Designed for use with corded and cordless hand drills, drill presses, drilling machines, and CNC, milling, or automatic machines equipped with a chuck that accepts a 3/16-inch unthreaded stem.

Installation Notes

Installation and use should be performed by machinists, maintenance technicians, or other trade professionals familiar with rotating abrasive tooling. Secure the unthreaded stem firmly in the drill chuck before operation and confirm the tool will not exceed the 2000 RPM maximum rated speed. Always wear appropriate eye protection and gloves when operating wire brushes, as fill wires can shed at speed. Inspect the brush for broken or missing wires before each use and remove from service if damage is found.

Technical Specifications

• Brush Diameter: 9/16 inches
• Brush Length: 1 inch
• Fill Material: Steel
• Fill Wire Diameter: 0.005 inches
• Spiral Type: Single Spiral
• Stem Diameter: 3/16 inches
• Stem Length: 2.5 inches
• Stem Material: Stainless Steel
• Attachment Type: Unthreaded Stem
• Maximum RPM: 2000
• ANSI Standard: B165.1
• Compliance: RoHS Compliant
• Industry: Manufacturing
• Sales Unit of Measure: EA
• Standard Pack Quantity: 10

Standard Information

• Brand: WEILER
• Manufacturer Part Number: 21143