285 SOLID CARBIDE DRILLS Karnasch Art. 29 0120 – 6.0 mm Drill exit Material: CRP CRP drill test Karnasch Art. 29 0120 – 6.0 mm Drill entry Material: CRP Magnification: 30× CVD drill 6.0 mm Competitor Drill exit Material: CRP CVD drill 6.0 mm Competitor Drill entry Material: CRP Magnification: 30× Drill entry Drill exit Competitor Drill entry Competitor Drill exit Cutting data Cutting speed = 160 m/min Feed rate = 850 mm/min rpm = 8,493 Feed per tooth = 0.1 mm Depth of cut = 20 mm Cutting data Cutting speed = 160 m/min Feed rate = 850 mm/min rpm = 8,493 Feed per tooth = 0.1 mm Depth of cut = 20 mm 11 Index 10 9 OIL 8 7 6 5 4 3 2 1
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