Check the listing for details. Spare Jaws for Workstand pro mechanic/hd pro/pro air FD02AFA000000013. Condition: New. Listed at 48.16 USD. Replacement clamping jaw assembly for Pro Mechanic HD and Pro Mechanic repair stands. This is a design update that includes replaceable rubber jaw covers. These replacement jaws are NOT interchangeable with the black replacement jaws found on the clamping heads of Slide-Lock and Spinner Knob type bike repair stands. Includes mounting bolts, metal jaw support plates, and replaceable rubber jaw covers. Replacement clamping jaw assembly for Pro Mechanic HD and Pro Mechanic repair stands. This is a design update that includes replaceable rubber jaw covers. These replacement jaws are NOT interchangeable with the black replacement jaws found on the clamping heads of Slide-Lock and Spinner Knob type bike repair stands. Includes mounting bolts, metal jaw support plates, and replaceable rubber jaw.