These IRWIN VISE-GRIP 12-Inch GrooveLock Pliers slide open to accommodate large and small stock. The jaw reaches a maximum depth of 2.75 inches, and it grips nuts up to 1.98 inches in diameter. These Irwin GrooveLock pliers rely on one Press-N-Slide button to change positions, and they tighten even further with 19 ratchet stops. The ratcheting motion enhances the grip to suit materials of all sizes, so you can minimize slips while you twist. ProTouch handles help you maintain your hold when you press the handles together, and they will not pinch your fingers in the process. These Irwin pliers have flat jaws with right-angle teeth that grip anything, including materials with rounded edges. Metal injection molding (MIM) gives this tool the strength it needs to withstand pressure for home and professional jobs. Irwin GrooveLock pliers open to a maximum size of 2.75 inches One button adjusts jaw position to accommodate different material sizes Ratchet system uses several grooves to tighten at small intervals