Rotatable universal grip inserts for securely gripping the clamps in all positions. Extremely good leverage allows clamps to be opened easily without great effort. Quick-set adjustment: adjusts by shifting directly onto the workpiece. Slim head design- narrow head width, rotatable grip inserts. Gripping surfaces with special hardened teeth (hardness approx. 61 HRC). Box-joint design: high stability due to double guide. Pinch guard prevents fingers being pinched. Locking lever.