Screw Gauge (Metric)

A small card type screw/bolt gauge I keep handy in the workshop. The shank diameter can be assessed using the slot or the hole. The length is measured by putting the bolt up against the side of the card. For best accuracy you should drill out the hole with the right size drill and use the same drill to test and lightly sand the slots if they need it. Boost MeHi! If you like and use this model, please consider boosting it!