Easily grip stripped screws and bolts with the front and side gripping areas. Front jaw design grips even the toughest stripped screws. Optimized side jaw with opposing teeth for maximum force when gripping round, square and hex materials. Three push-button adjustments - adjust once and it stays. Slim head design for working in confined spaces. Large front and side gripping capacities from 1/8" to 5/8" (3 to 16 mm). Reliable front gripping of flat workpieces due to the three-point system. Pinch guard prevents operators' fingers from being pinched. Durable construction due to box-joint design. Gripping surfaces with special hardened teeth (approx. 61 HRC). Forged from high-grade chrome vanadium electric steel, oil-hardened.