Staubli Single-ended pliers GRIP-ESZ single-ended pliers for quick and secure contact with M4, M5 or M6 bolts, e.g. on motor connections. Threaded inserts are replaceable and can be purchased separately. The current depends on how much thread is inserted. ■GRIP-ESZ... Spring type 4 mm plug with rigid flange sleeve with fixed 4 mm socket at pressure part ■GRIP-ESZ/XM... -419, with assembled cable with in-line 4 mm MULTILAM plug and rigid flange sleeve. Note: Single-ended pliers can only be connected or disconnected when the power is off.