The 8-inch TORQUE LOCK Locking Seamer provides you with faster tool setup and more locking force. The locking seamer’s thumb screw provides you with a more convenient geometry for hand force while providing clearance to generate more torque with the unique screwdriver through-hole design. The seamer’s hardened jaws give you increased gripping power and they are made of forged alloy steel for maximum durability, perfect for the toughest of job sites. We stand behind The product and offer a MILWAUKEE Limited Lifetime Warranty with all The locking tools.