DIATEST company product, it is one kind is used at high accuracy internal diameter to measure a tool, can replace before pneumatic measures small appearance. Main characteristic: ① is used convenient, do not need pneumatic device and deserve to use cop, can save overhead expenses; Service life grows ② , can undertake 1 million times metrical; ③ and the dial indicator that use in great quantities at present, dynamoelectric measure small appearance to have interchangeability, can reduce cost substantially; ④ can is opposite travel nicety measures the of all kinds Kong Jingjin such as aperture of aperture of via, blind, form of taper hole, beat, whorl aperture, measure precision to be in less than of 1 μ M, repeat precision to amount to 0. 2 μ M; ⑤ measures head and accessory to all have interchangeability, can need according to measuring, change to measure head and accessory aptly. CNC Milling