Chamfer Ring Masters, with Calibration Cert. These Chamfer Ring Masters from GSG are available in A2 steel, supplied in Class X tolerance, and includes a Long Form Calibration Certificate. Features include... A2 Steel 90° +0.0005" Tolerance Includes Certificate of Calibration Please select size from Pulldown Menu. Item G K H R TPG90K250 90° 0.250" 0.500" 1.750" TPG90K375 90° 0.375" 0.500" 1.750" TPG90K500 90° 0.500" 0.500" 1.750" TPG90K750 90° 0.750" 0.750" 2.000" TPG90K100 90° 1.000" 1.000" 2.500" TPG90K125 90° 1.250" 1.000" 2.500" TPG90K150 90° 1.500" 1.500" 3.000" TPG90K175 90° 1.750" 1.500" 3.500" TPG90K200 90° 2.000" 1.750" 3.500"
