Milwaukee Torque Lock MAXBITE locking tools deliver 3X gripping force and provide faster tool setup to the professional tradesmen. The patent pending thumb screw provides the user with a more convenient geometry for hand force, while providing clearance to generate more torque with the unique screwdriver through-hole design. Featuring hardened jaws for increased gripping power and forged alloy steel for maximum durability, the Milwaukee 48-22-3607 is perfect for the toughest of jobsites. Milwaukee stands behind their product and offers a limited lifetime warranty with all locking tools.