SumiDrill Power Series New SDM Type Chip Control Drill: Ø 8mm, L/D=5 Work Material: X5CrNiS18 10 (1.4301) Cutting D ata: vc=60m/min, f=0,10mm/rev, ap=19mm Internal coolant (2,0MPa) SDM Competitor A Short chips, Partial long chips, good chip evacuation risk of tool breakage by poor chip evacuation Optimal Cutting Forces Drill: Ø 8mm, L/D=5 Work Material: X5CrNiS18 10 (1.4301) Cutting Data: vc=60m/min, f=0,20mm/rev, ap=40mm Internal coolant (2,0MPa) 10% lower than competitor A SDM Competitor Cutting Time Cutting Time Unstable Low Burr Formation 0,3 Drill: Ø 8mm, L/D=5 0,6 Lowburr Work Material: X5CrNiS18 10 (1.4301)Cutting Data:vc=60m/min, f=0,20mm/rev, ap=40mmInternal coolant (2,0MPa) 0,4 0,2 0 SDM Competitor A Competitor B Burr (mm) 0,20 0,24 0,77 SDM Competitor A Competitor B K13 Burr Height Cutting Force (N) Cutting Force (N) Multi-Drills