BE-TOOL Triangular/Hexagon Shank Spiral Groove Step Cone Drill High Speed Steel Cutting Holes

Features: Made from high quality HSS steel Ideal for using to cut holes in a variety of materials including steel brass wood plastic etc. Hss Drill Bit Set quality tool for jobs of all sizes Titanium coated to reduce friction and heat Heat treated and highly polished. Drills perfectly round holes in steel brass plastic wood etc. 3 sided shanks design in order to prevent slippage when in chuck Two flute design provides faster smoother and cleaner cuts each step is clearly labeled with the depth diameter in steps Specification: Type: Step Drill Dit Material: High Speed Steel Coating: P6M5 Nano Blue Coating Shank: Triangle/Hexagon Size: 4-12mm 4-6-8-10-12mm 5 Steps 4-20mm 4-6-8-10-12-14-16-18-20mm 9 Steps 4-32mm 4-6-8-10-12-14-16-18-20-22-24-26-28-30-32mm 15 Steps Package Included: Hss Drill Bit Set