Measure depths from 0 to 4" with inch, metric or fraction readout modes! Spring loaded travel provides accuracy to 0.001". Check the depth of slots, dovetails, mortises,dadoes and more. Measure tire tread depth. Quickly quantify table saw runout and measure the flatness of your blade. Interchangeable 1" and 2" measuring bars included.

Tire depth video here: youtube.com/watch?v=pow535T3pQ0