Weiler 21090 Steel Hand Tube Brush Single Spiral 7 in Oal

Product Description

The WEILER 21090 is a single-spiral steel hand tube brush designed for cleaning the interior of small-diameter tubes, ports, and passages. The brush head measures 1.5 inches long with a 3/16-inch brush diameter and uses 0.003-inch steel wire filaments wound in a single spiral pattern. A 3/32-inch galvanized steel shank connects to a loop handle, giving the technician a secure grip during manual scrubbing. Overall length is 7 inches. This brush is well suited for deburring, scale removal, and flux cleaning in tight-bore applications common to HVAC, plumbing, and refrigeration work.

This brush is intended for hand use in applications where a power drill is impractical or where light, controlled abrasion is needed. Typical uses include cleaning copper tube ends before soldering, clearing orifice passages, removing corrosion from small fittings, and brushing out threaded ports. The loop handle style allows single-hand operation without a separate handle tool. Trade professionals in HVAC, plumbing, and refrigeration service will find the 3/16-inch diameter appropriate for small-bore tube and port cleaning tasks encountered in the field.

Key Features

• Single-spiral fill pattern provides consistent, even contact along the bore wall
• 0.003-inch steel wire filaments deliver controlled abrasion without aggressive material removal
• 3/16-inch brush diameter suits small-bore tubes and narrow ports
• 7-inch overall length with loop handle for secure single-hand grip
• Galvanized steel shank resists corrosion during wet or flux-exposed cleaning tasks
• Lightweight at 0.01 pounds, easy to carry in a service kit

Compatibility

Designed for manual hand use in small-bore tube and port cleaning applications. Suitable for use wherever a 3/16-inch brush diameter fits the target bore.

Installation Notes

This is a hand-operated brush and does not require power tools for use. When cleaning tube interiors before soldering or brazing, ensure all flux residue and debris are fully removed and the work area is clear of open flame before applying heat. Inspect the brush wire and shank for deformation or loose fill before each use and replace if the spiral wrap shows signs of unraveling. Always follow applicable safety practices when working with cleaning chemicals or in confined spaces.