Digital Screw Thread Micrometer Range 3 in to 4 in 75 to 100 mm Resolution 0.00005 in/0.001 mm Accuracy +/-670 micronin (28 to 20 TPI) +/-906 micronin (6 to 3.5 TPI) IP Rating Not Rated SPC Output Yes Data Output Type Cable Wireless with Transmitter Long Form Calibration Certificate No Anvil Shape Flat Anvil Size 0.315 in Coolant Resistant No Dimension Type Inch/Metric Operation Type Digital Thimble Type Ratchet Anvil Material Steel Battery Size LR44 SR44