Made from high quality HSS steel Ideal for using to cut holes in a variety of materials including steel, brass, wood, plastic, etc. Only Medium Hss Drill Bit, 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 labelled with the depth diameter in steps Specification: Surface treatment: Titanium Plating Colour: Golden Ranges for 420mm Has a 8mm Shank