CTA Tools 8880 Plugweld Locking Plier Features a Heavy Duty, Spring Loaded Locking Handle Design Offers Clamping Action that Allows Easy Plugging of Small Holes when using a MIG Welder Includes a Copper Alloy-Backing Plate to Prevent Burn Through - Weld will Not Stick to the Copper Alloy Features Overall Length that Measures: 23-Centimeters Features a Heavy-Duty Construction that Ensures Durability