Knipex 8701400 16-Inch Cobra Pliers Plastic Coated Non-Slip Handles Box-Joint Design is Highly Stable Because of a Double Guide Fast Adjustment Directly on the Work Piece, Just Position the Upper Jaw to the Work Piece , Push Button and Move Close the Lower Jaw Guard Prevents Fingers Being Pinched Gripping Surfaces with Special Hardened Teeth, Teeth Hardness Approximately 61 HRC Provides Low Wear and a Secure Grip