Brush Research Mfg. 1A Helical Nylon Tube Brush 0.25 in

Product Description

The BRUSH RESEARCH MFG. 1A is a single-spiral helical tube brush designed for cleaning, deburring, and surface finishing inside small-diameter tubes, ports, and passages. The brush features a 0.25-inch brush diameter and 2-inch brush length, with nylon filaments measuring 0.008 inches in diameter. The galvanized steel shank, measuring 0.097 inches in diameter, provides a secure, corrosion-resistant connection to standard rotary tools and power drivers. Overall length is 10 inches. Licensed tradespeople and maintenance technicians use this brush for precision bore cleaning in plumbing, HVAC, and light industrial applications.

This tube brush is suited for residential and commercial maintenance tasks where small-bore cleaning is required. Typical applications include clearing tube interiors, cleaning heat exchanger ports, deburring drilled passages, and general bore maintenance. The nylon fill material is non-abrasive on soft metals and plastic surfaces, making it appropriate for use in copper tubing, PVC fittings, and similar components. The single-spiral construction ensures consistent filament contact along the full brush length.

Key Features

• 0.25-inch brush diameter sized for small tube and bore cleaning
• 2-inch brush length for thorough interior coverage
• Nylon filaments at 0.008-inch diameter for non-abrasive cleaning action
• Single-spiral construction for consistent contact and filament distribution
• Galvanized steel shank at 0.097 inches for corrosion resistance and tool compatibility
• 10-inch overall length provides reach into deeper passages

Compatibility

Designed for use in tubes and bores with an inside diameter of approximately 0.25 inches; compatible with standard rotary tools and power drivers accepting a 0.097-inch shank.

Installation Notes

This brush is installed by trades professionals including plumbers, HVAC technicians, and maintenance mechanics. Before use, ensure the workpiece is depressurized and isolated from fluid or gas supply lines. Chuck the shank securely in the tool before energizing. Do not exceed the recommended RPM rating of the tool or brush to avoid filament fatigue or shank deflection.