This is an OEM part sourced directly from the manufacturer. The locking handle is found on Powermatic feeders. This part is made of high-quality plastic, with an attached metal bolt, and is used to lock the motor clamp in place. No tools are required when replacing this item. Simply remove the old part and thread the new one into place. This part is sold individually. For Use With: Jet PF-31 (1790807K) 1Ph 115V 4 Speed Powerfeeder PF-33 (1790800k) 3Ph 230V 4 Speed Powerfeeder PF-41 (1790812K) 1Ph 115V 4 Speed Powerfeeder PF-43 (1790811K) 3Ph 230V 4 Speed Powerfeeder PF-33 (1790810K) 3Ph ...