Single-Rod Tubular Inside Micrometer Set Range 2 in to 12 in Inside Micrometer Type Tubular Inside Micrometer Number of Measuring Rods 1 Number of Micrometers 10 Operation Type Mechanical Thimble Type Plain Case Included Yes Contact Point Material Carbide Contact Point Shape Curved Features Clear Crisp Graduations on the Satin Chrome Finished Micrometer Head Zero Point can be Readjusted Includes Key Wrench Locking Clamp Lock Nut Type Clamp Maximum Measurement - Inch 12 in