High quality 6150 chrome vanadium steel helps keep edges honed. Heat treated and tempered for longer life. Designed for professional auto mechanics and heavy duty applications. Set includes: 3 Cold chisels: 3/8" x 5-1/2", ½" x 6" and 5/8" x 6-1/2". 2 Center punches: 1/8" x 5" and 3/16" x 6". 5 Pin punches: 3/32" x 4-1/4", 1/8" x 4-3/4", 5/32" x 5", 3/16" x 5-1/4" and ¼" x 5-3/4". 5 Taper punches: 3/32" x 5-1/4", 1/8" x 5-3/4", 5/32" x 6", 3/16" x 6-1/4" and ¼" x 6-3/4". 1 Chisel punch gauge and bonus tool wrap for easy storage.