Standard 0.01mm graduation. Dial gauges having a bezel with an outside diameter of 57mm. All types come with limit pins and a bezel clamp as standard. ? The bezel clamp and lifting lever (optional) can be attached to either the right or left side. These parts can be easily installed and removed without tools. ? Secured adhesion between the bezel and crystal as well as the use of an O-ring ensure counter measures against water and oil permeation via the front face. ? A carbide contact point is used. ? The crown gear uses stainless steel that is resistant to wear and deformation. ? Application of a hard coating on the surface of the crystal makes the gauge highly scratch and chemical resistant. ? Lug back mounting.