Pipe Tap Torque and Horsepower

TAP SIZE and PITCH MIN. TORQUE MAX. TORQUE REQUIRED HORSEPOWER
1/16 - 27 60 120 1/2
1/8 - 28 80 160 1/2
1/4 - 18 200 500 1
3/8 - 18 300 600 1
1/2 - 14 800 1300 1 1/2
3/4 - 14 1000 1500 1 3/4