Fowler's Dial Thickness Gages are light in weight, easy to handle and carry. These specially built gages are mounted in a hand contoured frame with a thumb release mechanism; has fast direct reading to .001".åÊ Used to measure thickness of paper, cellophane, plastic film and metal plates. These are high quality precision instruments. Features include... 0-10mm Measuring Range 0-25mm Throat Depth 0.01mm Graduations 10mm Anvil Diameter Case finished in dull plated chrome. Measuring faces constructed in high grade tool steel; hardened, ground and lapped. Direct reading 0-100 (with revolution counter) on easy-to-read dial Frame is hammertone baked enamel Spindle of hardened stainless steel Features a thumb release mechanism