Pro-source 04994 Brass Twisted Wire Bristle Brush

Product Description

The PRO-SOURCE 04994 is a brass twisted wire bristle brush designed for cleaning small-bore holes, tubes, ports, and threaded fittings. The brush head measures 1 inch in length with a 0.25-inch brush diameter, and the overall assembly reaches 4 inches. Filament wire diameter is 0.003 inches, providing a fine, flexible cleaning action suited for removing debris, scale, and light oxidation from internal surfaces. The single-spiral fill pattern distributes bristles evenly around the bore for consistent contact. Installers in HVAC, plumbing, and mechanical trades use this type of brush for port cleaning during service and commissioning work.

This brush is well suited for cleaning small passages in plumbing fittings, HVAC coil ports, carburetor passages, valve bodies, and similar restricted openings. The 0.062-inch stainless steel shank accepts standard drill chucks or can be used by hand for manual passes. The brass fill material is non-sparking and compatible with copper, brass, and most soft-alloy internal surfaces without causing scoring.

Key Features

• Brass bristles provide non-sparking, corrosion-resistant cleaning action on soft-alloy surfaces
• Single-spiral fill pattern ensures even bristle distribution for consistent bore contact
• 0.003-inch wire diameter delivers fine, flexible cleaning suitable for delicate internal passages
• Stainless steel shank at 0.062 inches diameter fits standard drill chucks or manual holders
• 4-inch overall length provides reach into recessed ports and tube ends

Compatibility

Designed as a general-purpose small-bore cleaning brush for use in HVAC, plumbing, and mechanical service applications requiring a 0.25-inch brush diameter and 1-inch brush length.

Installation Notes

This brush is used by HVAC technicians, plumbers, and pipefitters during maintenance and installation tasks. Shut off and depressurize any line or component before inserting the brush into ports or passages. When used in a drill, run at low speed to avoid bristle flare or shank bending. Wear appropriate eye protection when using rotary wire brushes in any orientation.