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285DEEP HOLE DRILLINGFINE-BEAM Machine Requirements for BTA and DTS Drilling MethodsMachine requirements for deep drilling byBTA or DTS drilling methods using TRI-DEEPfamily tools are shown in the table below.STS - Setting Guidelines for CuttingLoads, Fluid Pressure and FlowRate During STS OperationNet PowerPc (kW)0 10 20 30 40 50 60 70510152025Vc = 100 m/minf = 0.25 mm/revVc = 70 m/minf = 0.15 mm/revDrill dia. (mm)Feed ForceFf (kN)0 10 20 30 40 50 60 7051015Vc = 100 m/minf = 0.25 mm/revVc = 70 m/minf = 0.15 mm/revDrill dia. (mm)TorqueT (kNm)0 10 20 30 40 50 60 700.10.20.30.40.5Vc = 100 m/minf = 0.25 mm/revVc = 70 m/minf = 0.15 mm/revDrill dia. (mm)Coolant PressureP (MPa)0 10 20 30 40 50 60 702468101MPa = 1.0 N/mm21Mpa %u2248 10 atmDrill dia. (mm)Coolant Volumeq (l/min)0 10 20 30 40 50 60 70100200300400Drill dia. (mm)The above values should not be used as the exact recommendations. They may need modification depending on the machining conditions, materials, etc.