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Spiral drill with cyl. Shank, long
Design: HSS Co5, DIN 340, type TF. Profile grinding, bright surface, nitrated bevels from ∅ 2.5 mm as well as wide clamping slots with heavily rounded back edges and excellent thermal resistance. Good centring characteristics due to point thinning according to DIN 1412, form A. Angle of rake larger than normal, core thickness considerably thicker than normal and without core gradient. Hole depth up to 10 x D. Application: Particularly suitable for alloyed/non-alloyed steels and casting types above 800 N/mm 2 in strength, hot and cold work steels, roller bearing steels, high-alloy steels, tempered steels and case hardening steels.
Design: HSS Co5, DIN 340, type GU 500. Profile grinding, wide clamping slots. Angle of rake larger than normal, with special profile. Application: Versatile drill even on powerful machines. Particularly suitable for various casting types, plastics and non-ferrous metals.