Pro-source 06681 Horsehair Bristle Brush 4x3/8 in

Product Description

The PRO-SOURCE 06681 is a single-spiral horsehair bristle brush designed for cleaning, deburring, and surface preparation in tight or cylindrical passages. The brush section measures 4 inches long with a 3/8-inch diameter, while the overall assembly extends to 26 inches — giving technicians reach into deep bores, tubes, and conduit. The horsehair fill material provides moderate stiffness suitable for light scrubbing without scratching softer surfaces. Filament diameter is 0.008 inches and the shank diameter is 0.13 inches, making it compatible with standard drill chucks or flexible drive extensions. Plumbers, HVAC technicians, and maintenance trades keep this style of brush on hand for tube cleaning and thread prep work.

This brush suits residential and light commercial maintenance applications where access to narrow interior passages is required. Typical use cases include cleaning copper tube ends before soldering, clearing debris from conduit, and scrubbing the interior of pipe fittings. The 26-inch overall length allows extended reach without requiring the operator to reposition into tight spaces. The single-spiral construction helps the brush center itself inside round bores and maintains consistent contact around the full circumference of the passage being cleaned.

Key Features

• 4-inch brush length with 3/8-inch brush diameter for narrow bore access
• 26-inch overall length provides extended reach into deep passages
• Single-spiral construction centers the brush for consistent circumferential contact
• Horsehair fill material for light scrubbing without surface damage
• 0.008-inch filament diameter for flexible, controlled cleaning action
• 0.13-inch shank diameter fits standard drill chucks and flexible drive extensions

Compatibility

Designed as a general-purpose tube and bore cleaning brush suited for 3/8-inch diameter passages in plumbing, HVAC, and light industrial maintenance applications.

Installation Notes

This brush is installed into a drill chuck, hand driver, or flexible shaft extension before use. Ensure the shank is fully seated and secured before operating at speed. When using power equipment, start at low RPM to confirm the brush is centered and running true before increasing speed. Wear appropriate eye protection when using any rotating wire or bristle brush in maintenance work.