Both professionals and hobbiest, rejoice! The Excel Blades’ Excel Blades 20 Assorted Drills Index #61 – #80 is set to become your next favorite tool! This drill pack features fine high speed steel drills made from stainless steel, includes drills #61 – #80 and comes in a case pack for safety and organized keeping. This drill includes drill bits 61,62,63,64,65,66,67,68,69,70,71 72,73,74,75,76,77,78,79,80. These drill bits are used on wood, resin, jewelry, walnut, amber, beeswax, olive nut, beads, PVC, acrylic, plastic, and more. The item # 55522 is made of high carbon steel.This products works in conjuntion with Excel Blades’ pin vises: 55661, 70003, 70011, 70023.It comes with 1 per pack.