Pro-source 05037 Brass Twisted Wire Bristle Brush

Product Description

The PRO-SOURCE 05037 is a single-spiral brass twisted wire bristle brush designed for precision cleaning, deburring, and surface preparation in tight bores, ports, and passages. The brush head measures 1.5 inches long by 0.3125 inches in diameter, with a 7-inch overall length that provides reach into recessed areas. Brass fill wire at 0.006 inches in diameter delivers firm but non-sparking bristle action, making it suitable for use on softer metals, tubing interiors, and threaded fittings. The galvanized steel shank at 0.085 inches in diameter mounts securely in standard drill chucks or hand holders.

This brush is commonly used by HVAC technicians, plumbers, and pipe fitters for cleaning copper fittings, flux residue, corrosion deposits, and scale from small-diameter ports and tube ends. The single-spiral construction concentrates bristle contact along the bore wall, making it effective for pipe prep work before soldering or threading. It is also used in light industrial maintenance for cleaning small orifices, valve seats, and instrument ports where steel bristles would risk scratching or contaminating the work surface.

Key Features

• Brass fill material provides non-sparking, non-ferrous bristle action safe for copper and soft-metal surfaces
• Single-spiral construction ensures consistent bore-wall contact across the 1.5-inch brush length
• 0.006-inch wire diameter delivers firm cleaning action without aggressive material removal
• 7-inch overall length with 0.085-inch galvanized steel shank fits standard rotary tool chucks and hand holders
• 0.3125-inch brush diameter targets small-bore fittings, ports, and tube ends common in HVAC and plumbing work

Compatibility

Designed for use in small-bore cleaning applications requiring a 0.3125-inch diameter brush, including copper tubing prep, valve port cleaning, and fitting deburring tasks common in HVAC, plumbing, and light industrial service work.

Installation Notes

This brush is installed by HVAC technicians, plumbers, and maintenance trades using a standard drill chuck, flexible shaft, or hand-held pin-vise holder. Ensure the workpiece is secure and the system is depressurized and de-energized before inserting the brush into any port or fitting. Operate at moderate rotational speeds to prevent premature filament wear. Inspect the brush before each use and replace if bristles are splayed, broken, or significantly shortened.