Ideal for compressing inner brake pads and resetting pistons for fast break pad replacement.Tighten by hand with the built-in easy to turn slip resistant comfortable knob and threaded driver.High carbon steel and chrome vanadium mix for added strength and corrosion resistance.360 degree swivel joint for even and precise compression force.Compatible with domestic cars and light trucks and is ideal in tight areas where a C-Clamp won’t work. HOW TO USE: 1 – Use your old brake pad in conjunction with this brake pad spreader tool to compress the piston. 2 – Open the brake master cylinder cap before compressing and monitor the fluid level so it does not overflow. 3 – After changing the brake pads, start the vehicle and pump the brakes before driving.