Pinch proof design. Press the PUSH button for smooth position adjustments. Machined parts with 16 smooth position adjustments. Grip tie by squeezing lower jaw handle. One hand wrenching. High carbon alloy steel,Face finish: black+polish,Jaw capacity 50mm Max. 250MM ADJSUATBLE LOCK JAW PLIER High carbon alloy steel,Face finish: black+polish,Jaw capacity 50mm Max. Grip tie by squeezing lower jaw handle. One hand wrenching. Machined parts with 16 smooth position adjustments. Press the PUSH button for smooth position adjustments. Pinch proof design.