Hole gauge is solution to rimless frame you are looking for. It is applied to gauge of drilled holes on rimless frames and screw nuts. There are 10 dimension gauge pins, well-made of High Speed Steel, rustproof. It is accurate to 0.01mm. Sized gauge pin is able to easy accurate measurement.
Benefits Fast accurate gauge for drilled holes on rimless frame and screw nuts; 10 dimensions available; Be accurate to 0.01mm; High speed steel gauge pins; rustproof; Easy fast identification;
