Каталог Sumitomo сверла и развертки - страница 49

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High Efficiency Solid Carbide Strong MultiDrill HX Type W/ Oil Hole Internal Coolant Supply 3D 5D 8D ● HX Type LU PL DC h8 DMM h6 140° LCF OAL ■ Recommended Cutting Conditions （vc: Cutting Speed m/min f: Feed Rate mm/rev) Drill Diameter Cutting Gray Cast Iron Ductile Cast Iron DC (mm) Conditions FC250 FCD450 vc 50 - 70 - 90 40 - 50 - 80 Up to ø3.0 f 0.10 - 0.20 - 0.30 0.12 - 0.18 - 0.24 vc 50 - 70 - 90 40 - 50 - 80 Up to ø5.0 f 0.15 - 0.25 - 0.35 0.15 - 0.22 - 0.30 vc 60 - 80 - 100 50 - 60 - 90 Up to ø10.0 f 0.20 - 0.35 - 0.50 0.20 - 0.30 - 0.40 vc 70 - 100 - 120 60 - 80 - 100 Up to ø20.0 f 0.25 - 0.50 - 0.70 0.25 - 0.45 - 0.60 Min. - Optimum - Max. J Drilling Solid Special Indexable Reamer Brazed Others J27