Digital 3-Point Inside Micrometer, Range 0.25 in to 0.3125 in, 6 mm to 8 mm, Resolution 0.00005 in, 0.001 mm, IP Rating IP65, SPC Output Yes, Data Output Type Cable, Wireless with Transmitter, Coolant Resistant Yes, Inside Micrometer Type 3-Point Inside Micrometer, Number of Micrometers 1, Operation Type Digital, Thimble Type Ratchet Stop, Case Included Yes, Case Type Wood Case, Contact Point Material Carbide, Display Type LCD, Functions Inch/mm Conversion, Reducing The Need to Exchange Anvils