Schaefer Brush 93502 Tube Brush 0.25 in Stainless Steel

Product Description

The SCHAEFER BRUSH 93502 is a double stem, single spiral tube brush designed for cleaning and deburring the interior of small-diameter tubes, ports, and passages. The brush features stainless steel bristles on a stainless steel construction, making it well suited for applications where corrosion resistance and bristle durability matter. At 0.25 inches in brush diameter and 4.5 inches in overall length, it fits into tight spaces that larger brushes cannot reach. The 8-32 male threaded connection allows secure attachment to extension handles or power drive equipment. Technicians across HVAC, plumbing, refrigeration, and industrial maintenance routinely use this type of brush for tube and port preparation work.

This tube brush is used in residential and light commercial maintenance scenarios where small internal diameters need to be cleaned, cleared of scale, or prepped before fitting assembly. It is a hand-tool-compatible brush that also works with compatible threaded drive handles. The 3-inch brush and scraper length provides adequate reach into standard tube ends and access ports. Its all-stainless construction makes it appropriate for use in wet or chemically active environments where carbon steel bristles would corrode and contaminate the work surface.

Key Features

• Double stem, single spiral construction holds bristles firmly under use load
• Stainless steel bristles resist corrosion and contamination in wet or chemical environments
• 0.25 inch brush diameter fits small-diameter tubes and ports
• 3 inch brush length provides adequate reach into tube ends and access passages
• 8-32 male threaded connection compatible with standard extension handles and drive tools
• Lightweight at 0.02 pounds for easy one-handed use

Compatibility

Designed as an OEM-style replacement or direct-use tube brush for applications requiring a 0.25 inch diameter, double stem single spiral brush with an 8-32 male threaded connection.

Installation Notes

This brush is typically used by HVAC technicians, plumbers, and general maintenance professionals during tube cleaning and port preparation work. Before use, ensure the tube or passage to be cleaned is depressurized and free of fluid flow. Thread the brush securely onto any compatible 8-32 threaded handle before inserting into the work surface to prevent loss of the tool in the passage. Do not force the brush into a diameter smaller than rated, as this can permanently deform the bristles and reduce cleaning effectiveness.