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HSS EXTRA LONG SERIES. DRILLS FOR METAL. HSS Extra Long Series - HSS SUPER - 7 mm ø. Single packing. Range of application: High efficiency drills for extremely deep holes where working conditions such as. cutting speed, feed, coolant and frequent chip removal have to be observed. Split point. 118 degree angle. High Speed Steel. Strengths. Sharp cutting edges Even with larger diameters little feed. pressure is required. Very high elasticity and greatest toughness with optimum. cutting performance. High fracture resistance Even with smaller diameters low. risk of breakage due to high elasticity. Optimum drilling performance even in unfavourable working. conditions. Industrial Quality. Highly Accurate. Precise. Alpen drill bits are manufactured in Austria.
