PTC’s Model 307L ASTM Type D Durometer measures the hardness of hard rubber, plastics, epoxies, soft metals, and other similar materials. The Model 307L meets or exceeds American Society for Testing and Materials (ASTM) D2240 Specifications. The instrument features a low glare serialized dial with bold, easy to read numbers. The durometer has a Max Hold hand which maintains the peak reading until reset. Each durometer comes complete with a test block and carrying case.
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