Product related parameters

*These specialty wrenches are open-ended discs, slipping easily over hex sided fasteners. Once in place, your existing ratchet, extender or torque wrench is attached to the crowfoot drive hole to drive fasteners

*Metric sizes from 8 mm to 32 mm, and are universally compatible with either 3/8-inch or 1/2-inch drive head tools(3/8-inch drive: 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19 mm; 1/2-inch drive: 21mm, 22mm, 24mm, 27mm, 28mm, 30mm, 32mm)