STEPPED TAPER DRILL BIT 4-39 HSS STEEL M2

》》》 TAPERED STEP DRILL BIT 4-39 HSS STEEL M2 T03203 《《《》. Drill step 4-39mm from professional tool brand Tvardy made from the highest quality HSS M2 steel with TiAlN coating.Drill stepped every 3mm with cylindrical chuck and clear numbering.Designed for metals, thin-walled steel sheets, plastics.M2 steel is a high quality tungsten-molybdenum tool steel, it is used to produce the highest quality cutting tools.This steel is characterized by excellent cutting properties.High molybdenum content significantly improves hardenability, also increases impact strength and corrosion resistance.Tungsten, on the other hand, increases the steel's abrasion resistance, the drills do not dull as quickly as those made from cheaper high-speed steels. TiAlN-coated drills are designed especially for machining hard-to-machine materials and wherever the drill bit will be subjected to high heat loads due to lack of coolant or limited coolant supply.This coating greatly improves the drill's wear resistance and enables an increase in cutting speed.The drill is packaged in a blister pack with a hole for hanging it on a hook. Technical data : Type: step drill Shank: cylindrical Diameters [mm]: 4, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39 Grading: every 3 mm Total length [mm]: 107 Working length [mm]: 78.