*Metric/Inch dual scale  *Lower Scale Graduation of 0.02mm, *Upper Scale Graduation of .001" *accuracy of +/- 0.03mm.  *High Accuracy model. Features a small face angle of 14 degrees which provides easy reading.  *Measures Outside Diameter, Inside Diameter, depth and steps.  *Furnished in Satin Stainless Steel with easy reading graduations.  *Equipped with a lock screw for holding the sliding jaw position allowing the user to get easy measurements