The Mitutoyo Hardmatic test block set includes three test blocks in incremental hardness factors for calibrating HH-300 Hardness Testers. The hardness testing blocks calibrate Durometers for testing materials such as rubber, neoprene, polyesters, PVC, leather, etc.
Includes Calibration Set (Shore A Scale) Test Block 30* DURO (Blue) Test Block 60* DURO (Yellow) Test Block 90* DURO (Gray) Mahogany Box