■ Micrometer head: 150-175mm ■ Graduation:0.001mm/0.00005" ■ Accuracy:(3+n+L/50)μm, n= number of rods L=maximum measuring length (mm) ■ Carbide measuring faces ■ The diameter of extension rods is 22mm ■ IP65 dust/waterproof ■ Button function: on/off, set, mm/inch, ABS/INC ■ Data output ■ Automatic power off ■ Supplied with setting standards