Mechanical 3-Point Inside Micrometer Range 0.79 in to 0.99 in Resolution 0.00005 in/0.001 mm SPC Output Yes Movement of Screw 1 in Inside Micrometer Type 3-Point Inside Micrometer Number of Measuring Rods 0 Number of Micrometers 1 Operation Type Digital Thimble Type Ratchet Case Included Yes Contact Point Material Steel Contact Point Shape Curved Features Data Transfer By One Simple Click Self-Centering And Self-Aligning Guaranteed By 3-line Contact