Irwin 19 Locking C Clamp, Fixed, 3 1 2 in Max Jaw Opening, 2 5 8 in Throat Dp, 11 in Overall Clamp Lg 360L Tool End Connection Carabiner Tool End Connection Carabiner 300 2010 Primary Scale Range 30 ft lb to 150 ft lb Calibration Certificate Included Yes Visual Audible Indicators Audible Click Tether Capable Tether Capable Primary Scale Increments 1 ft lb Number of Geared Teeth 24 Min Turn Screw To Adjust Pressure and Fit Work Micro adjustment Clamping Force Not Rated Tether Capable Tethered Clamp Type C Clamp Screw Mechanism1 Adjust Pressure Jaw Opening Maximum 3 1 2 in Includes Swivel Pad No Release Mechanism Trigger Body Finish Nickel Plated Country of Origin China