Fowler's Portable Durometer is just right for testing the hardness of flexible materials such as rubber and plastics. These gages conform to shore scales. Features include... Manufactured in accordance with DIN, ASTM, ISO and JIS specifications, two styles are available in both analog and digital readout. A scale unit to fit a wide variety of applications. Test pieces should have a thickness of at least .20"/5mm to provide accurate readings that conform to Shore D hardness scales. Penetrator: Blunt taper 30° Shore Scale: D Graduation: 1 Shore The test piece size should be smooth and have sufficient area to be able to support the base of the hardness tester. Includes reference test block, operating instructions and fitted case. Optional bench stand available. Applications include... Soft and natural rubber products Neoprene and polyesters Soft P.V.C. Leather Thiokol Nitril rubbers, wax, felt and more.