2 Excellent chip evacuation Excellent chip evacuation with double coolant holes and optimized flute shape Double coolant holes Promotes chip evacuation by aiming at bore face of workpiece Flute shape Smoothly evacuates chips towards the back of the toolholder Discharges coolant towards the cutting edge wear resistance Smoothly evacuates chips from the cutting edge Provides a better solution when facing chip evacuation difficulties in small internal grooving Prevents chip crunching ø10 1 Residual Chips Rate (%) Chip evacuation comparison (Internal evaluationc Cutting conditions : Vc = 50 m/min, ap = 1.0 mm (Shouldering), f = 0.03 mm/rev, Wet (Internal Coolant), Workpiece : 17Cr3, with edge width 2 mm 52134 6 12 Residual chips rate (%) 50 Average 40 30 20 10 0 SIGC Competitor A Competitor B Residual chips (%) Weight of remaining chip in the hole (g) 100 rate Weight of chips removed (g) Chip evacuation comparison SIGC Competitor A Competitor B Good chip evacuation 3 Large lineup for various internal grooving Minimum cutting diameter ø8 mm Excellent bars and carbide shank bars added to the lineup 2
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