belknap specializes in torque wrenches and drive ends, including preset torque wrenches, preset standard interchangeable drive torque wrenches, standard interchangeable drive ends, adapters, marking torque wrenches, hose clamp tools, dials, torque testers, torque limiters, crowfoot adapters. we are the leader in specialty torque applications and have provided our customers with top of the line torque wrenches, adapters and specialized custom designed tooling, since 1936.