Schaefer Brush 93631 Tube Brush 15/16 in Brass Bristles

Product Description

The SCHAEFER BRUSH 93631 is a double stem, single spiral tube brush designed for cleaning the interior of tubes, pipes, and ports in mechanical, plumbing, HVAC, and industrial service applications. The brush features brass bristles mounted on a double-stem wire construction, giving it the lateral stiffness needed to scrub residue, scale, and debris from bore walls without collapsing under pressure. With a 15/16 inch diameter and an overall length of 6.25 inches, including a 4-inch brush length, it fits a specific range of tube sizes. The male connection end allows it to be chucked into a drill or used with compatible extension handles. Installed by plumbers, HVAC technicians, and maintenance trades.

This brush is suited for cleaning copper tubing, heat exchanger tubes, condenser tubes, and similar cylindrical passages where bore integrity and surface cleanliness are critical before brazing, soldering, or inspection. The brass bristle material is non-sparking and will not score softer tube materials such as copper or aluminum. It is a practical choice for service and maintenance work in residential and light commercial settings where tube cleanliness directly affects joint quality or heat transfer efficiency.

Key Features

• Double stem construction provides lateral rigidity for effective bore scrubbing
• Single spiral bristle pattern ensures consistent contact along the tube wall
• Brass bristles are non-sparking and safe for use on copper and aluminum tubing
• 15/16 inch diameter fits a specific tube bore size without improvised sizing
• Male connection end is compatible with standard drill chucks and extension rods
• 4-inch brush length covers typical tube cleaning depths in one pass

Compatibility

Designed as a direct-fit tube brush for cleaning 15/16 inch diameter tube bores in plumbing, HVAC, and industrial maintenance applications. Specific model compatibility was not provided in the product data.

Installation Notes

This brush is a hand or power tool accessory, not a fixed installation component. Before use, ensure the tube or port is depressurized and, where applicable, isolated from any live gas, refrigerant, or electrical systems. The brush can be operated manually or chucked into a variable-speed drill at low RPM for faster cleaning. Inspect bristles before use and discard if wires are bent, broken, or separating from the stem.