Upgrade Your Toolbox: Step Drill Bit HSS Straight Groove Titanium Set 3-32mm

Step Drill Bit Features 100% Brand New and High Quality Made from high quality HSS steel Ideal for using to cut holes in a variety of materials including steel, brass, wood, plastic, etc. Titanium coated to reduce mit and heat Heat treated and highly polished. Drills perfectly round holes in steel, brass, plastic, wood etc. 6 sided shanks design in order to prevent slippage when in chuck Two flute design drives faster, smoother and cleaner cuts each step is clearly labeled with the depth diameter in steps Function Deburring, Chamfering, Cutting or expanding holes Supporting tools: Pistol drill, Hand drill, Charging drill, Bench drill. Rotating Speed 3-12 speed:260-400 4-12 speed:260-400 4-20 Speed:180-240 Suitable Material Workpieces with general hardness, such as wood, plastic, PVC plate, iron plate, plate thickness within 3MM. Please note that stainless steel and spring steel are not applicable. Not for quenching. (Water injection cooling while working, it can effectively extend