Measures disc brakes and up to 12 on brake drums. Includes set of clamps; 4 sets of set screws; 1 Allen wrench; 1 set of 3-3/4 contact points; 1 set of 3/4 cone contact points and 1 set of 3/4 flat contact points in plastic tube. When measuring brake drums only, add 8 to measurement allows for long cone and jaw widths. For use with 6 and 8 calipers Caliper features: . Range: 6/150mm. Stainless steel frame. Large easy-to-read display. Resolution: .0005/.01mm. Direct inch/metric conversion. 4-way measurement, inside, outside, depth and step. Includes molded case.