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The JB INDUSTRIES BS-4 is a tubing bending spring designed for use with 1/4 inch OD tubing. It allows technicians to form smooth, controlled bends in soft copper, aluminum, brass, and steel tubing without collapsing the tube wall. The spring-type design slips over the tubing and provides uniform support along the bend radius, making it especially useful when working in tight spaces or when producing irregular bend angles. HVAC technicians, refrigeration mechanics, and plumbers rely on this type of tool when routing small-diameter tubing during equipment installation or service work.
The BS-4 is suited for residential and light commercial applications where 1/4 inch OD soft tubing must be routed around obstacles or fitted to specific run paths. It works with soft copper line sets, aluminum tubing, brass fittings assemblies, and steel tubing in HVAC, refrigeration, and plumbing installations. Its compact, single-spring format makes it easy to carry as part of a standard hand-tool kit on the job site.
Designed for use with 1/4 inch OD soft copper, aluminum, brass, and steel tubing in HVAC, refrigeration, and plumbing service applications.
Slide the bending spring over the tubing section to be bent before making any bends. Apply gradual, even hand pressure to form the bend and avoid kinking. Power down or isolate any refrigerant circuit before working on connected tubing. No special certifications are required to use this hand tool, but all refrigerant work must be performed by EPA 608 certified technicians.
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