Digital 3-Point Inside Micrometer Range 0.275 in to 0.35 in 7 mm to 9 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 Steel Contact Point Shape Curved