Inner hole measurement: When the aperture is measured, the penetration is qualified, as shown below.
Note: When measuring the plug gauge, it should be inserted vertically, not diagonally.
As a precision parts size pneumatic measurement equipment manufacturer, we have19+Years design experience engineer, can provide a variety of measurement solutions. The pneumatic probe produced by the use of German imported steel, to ensure the real material, after the original salt bath heat treatment, high temperature1500°Quench, wear proof, liquid nitrogen-180°Deep cooling to remove internal stress, prevent deformation, manual grinding, ensure micron accuracy.