The Matco Tools Hydraulic Brake Caliper Press, No. BCPH1, is a low-profile hydraulic piston with a T-handle or 14mm hex drive for spreading pistons on hydraulic brake systems. The BCPH1 starts thin and spreads wide, ranging from 37mm - 71mm (1.45" to 2.8"). The hydraulic-driven ram creates force of ratcheting presses with minimal user effort. The Hydraulic Brake Caliper Press is ideal for one, two, four, and six piston brake calipers.