Features: 1.Steel Materials 2.Range:9-150mm 3.Resolution:0.02mm 4.Can measure the inner diameter, slot size * a thinner gauge head, easy to measure hole narrow groove size * products comply with GB/T14899 standards. * made of high quality stainless steel manufacturing, digital dial direct reading, clear and convenient. * dial position can be adjusted, and with the help of a locking screw fastening. * the feet, feet frame integral heat treatment, measurement of surface hardening. * clear reading and directly. |