
HSS and HSS/Co drills CUTTING PARAMETERS INFO 138HB Material GroupISO 513 N4 Hardness/Rm Vc (m/min) 40÷60 D fn (mm) (mm/rev) CARBIDE 1.5 0.065 DRILLS 2 0.080 2.5 0.090 PU-HPU 3 0.100 TA-4HTA 3.5 0.110 SUH ALH 4 0.120 HRC 4.5 0.130 SUH MINI 5 0.140 HL 6 0.160 HSD 7 0.180 C-SD-TA 8 0.200 9 0.220 10 0.250 HSS DRILLS LFTA SUTA HSS-HSS/CO CARBIDE END-MILLS G2 MDTA HF VH/UP MEF ALU MEX/MH UH/MH HSS END-MILLS CARBIDE BURRS 237