VISE-GRIP Locking Pinch-Off ToolPinches off and locks on to tubing, leaving both hands free to do other work. Turn screw to adjust pressure and fit work. Stays adjusted for repetitive use. Constructed of high-grade heat-treated alloy steel for maximum toughness and durability. Guarded release trigger quickly unlocks and protects from accidental release. Jaw Length: 1 in; Jaw Shape: Straight; Jaw Thickness: 1/4 in; Material: Alloy Steel; Mechanism: Adjustable Mechanical Locking; Overall Length: 7 in; Packing Type: Boxed; Throat Depth: 1 in; Weight: 0.81 lb.