Digital 3-Point Inside Micrometer Range 0.65 in to 0.8 in 17 mm to 20 mm Resolution 0.00005 in 0.001 mm IP Rating IP65 SPC Output Yes Data Output Type Cable Coolant Resistant Yes Inside Micrometer Type 3-Point Inside Micrometer Number of Micrometers 1 Operation Type Digital Thimble Type Ratchet Stop Battery Size LR44 SR44 Compatible Data Output Cable Mfr No 7302-SPC2A Mfr No 7305-SPC3 Mfr No 7306-30 Contact Point Material Carbide Contact Point Shape Curved