Mechanical Caliper-Jaw Inside Micrometer Range 2 in to 3 in Resolution 0.00005 in SPC Output No Inside Micrometer Type Caliper Micrometer Number of Measuring Rods 0 Number of Micrometers 1 Operation Type Mechanical Thimble Type Ratchet Case Included Yes Case Type Plastic Case Contact Point Material Carbide Contact Point Shape Flat Features Locking Clamp for Positive Locking of Spindle Satin-Chrome Finished Includes Holder Locking Clamp Lock Nut Type Clamp