Both professionals and hobbiest, rejoice! The Excel Blades’ Excel Blades is set to become your next favorite tool! This drill pack is stainless steel includes a 6 piece assorted pack of our fine high speed steel, and is ideal for the light duty drilling of wood, plastic, and metal. The drills come in a tubed pack.The item # 55520 is made of high carbon steel.This products works in conjuntion with Excel Blades’ pin vises: 55661, 70003, 70011, 70023.