Precise Self Starting Step Drill, Tin Coated, 1/8 – 1/2 by 32nds – 500-500-1

Precise Self Starting Step Drill, Tin Coated, 1/8" - 1/2" by 32nds - 500-500-1 Made of high speed steel, heat treated and tempered for maximum strength. Requires no center punch to start drilling. Automatically deburrs drilled holes. Specifications: Model