MAHR .3125 XX Master Ring, .3125 XX, Steel, 5/16" without Certification Brand: Mahr ID#: .3125 XX-MHR |MFGID: .3125 XX Your Price: $189.97 Quantity discounts available QuantityPrice Return Policy Add Calibration w/ Certificate? NoNoYes - A2LA Calibration Cylindrical Ring Gage - CL XXX (+ $45.00) Qty -+ Add to Cart Request Info Questions?CallCall Us864.433.9771|Mon-Fri 8-5 EST Share Print Product Info Product Information Description Mahr .3125 XX Master Ring, .3125 XX, Steel, 5/16" Without Certification