We built this set to give you the most useful selection of tools for the best value. Includes everything you need to start marking, measuring and gauging like a pro: 6" metric/standard ruler with a conversion chart on the back; 9” protractor with depth gauge; 6-1/2" bore/cylinder gauge; 48-leaf screw and pitch gauge with standard and metric markings; 2" screw-cutting profile gauge; 4” angle setting gauge; 4" machinist square; 5" aluminum handle with steel marking awl; 4" brass vernier caliper; 5" brass automatic center punch and 7" steel square-legged divider; all packed in a sturdy, foam-lined wooden storage/transport case. Measuring tools are etched, stamped stainless steel.