The Bessey BPC-H12 “H” series pipe clamp fixtures provide additional height (extra clearance) over standard pipe clamps. Clamping fixtures are available to fit 1/2 in. and 3/4 in. black pipe (not included). The clamp has a clutch disc design for easy adjustments and can be secured at any point along the bar. Designed to meet the requirements of the most demanding workshops. The PC-H12 is for use with 1/2″ pipe.