Set has ✓Locking pliers with fast, precise push-button adjustment and safety lock. Patented twin slip-joint providing very high torsion resistance. 62 HRC high-frequency treated jaws. Also included are ✓ Aluminum sheathed trigger release locking pliers. Ergonomic aluminium sheathing, protects against weld spatter. Controlled, progressive release. Practical and comfortable : one-handed operation, small grip opening at all jaw openings. Forged in Chrome Molybdenum steel with treated jaws for a longer working life.