Mechanical 3-Point Inside Micrometer Range 0.7 in to 0.8 in Resolution 0.0001 in SPC Output No Movement of Screw 1 in Inside Micrometer Type 3-Point Inside Micrometer Number of Measuring Rods 0 Number of Micrometers 1 Operation Type Mechanical Thimble Type Ratchet Case Included Yes Contact Point Material Steel Contact Point Shape Curved