Includes shop-hardened case All Fowler Test Indicators include bidirectional constant clockwise rotation, automatic reversal, three dovetail mountings, jeweled movement. X-Test Features Range: .060" Graduation: .0005" Dial Reading: 0 15 0; 1-1/2" Dial Diameter Jeweled movement Revolution counter Automatic reversal 210 swivel arc Tungsten carbide point: .080" Mag Base Features 2 universal ball sockets Microfine adjustment screw 3-9/16" extension arm Dovetail mounting Chuck adaptorFowler