The Roughneck bonded drilling valve design is the model for extreme pressure drilling. It improves maintenance conditions in valve over-valve fluid ends and the uniform loading of the fluid end taper increases fluid end life. The Roughneck has a heat treated forged alloy steel valve body and valve seat for extended service life, ideal for higher horsepower pumps and pressures to 7,500 psi. Roughneck bonded valves are also available in White Lightning which is good to 230° F.