
HF UNI - Variable Helix and unequal pitch - 45° chamfer CUTTING PARAMETERS INFO HF440 Material GroupISO 513 P1 P2 P7 K1 P3 P4 M1 K2 K3 P5 M2 M3 K4 S1 S4 S2 S3 S5 Hardness/Rm ≤700 N/mm² 600÷1000 N/mm² ≤35 HRC ≤40 HRC ap x ae D x 0.4D D x 0.4D D x 0.25D D x 0.25D Vc (m/min) 100÷120 60÷80 45÷65 30÷40 D fz(mm)(mm/z) fz(mm/z) fz(mm/z) fz(mm/z) CARBIDEDRILLS VERTICAL 6 0.024 0.022 0.018 0.017 PU-HPU 8 0.032 0.028 0.024 0.022 TA-4HTA 10 0.038 0.034 0.028 0.026 SUH 12 0.043 0.039 0.032 0.030 ALH 14 0.049 0.044 0.036 0.034 HRC 16 0.054 0.049 0.041 0.038 SUH MINI 20 0.066 0.059 0.049 0.046 HL HSD C-SD-TA Material Group P1 P2 P7 K1 P3 P4 M1 K2 K3 P5 M2 M3 K4 S1 S4 S2 S3 S5 ISO 513 Hardness/Rm ≤700 N/mm² 600÷1000 N/mm² ≤35 HRC ≤40 HRC ap x ae DxD DxD 0.5D x D 0.5D x D Vc (m/min) 85÷105 55÷75 40÷60 20÷40 D fz fz fz fz (mm) (mm/z) (mm/z) (mm/z) (mm/z) 3 0.006 0.006 0.005 0.007 HSS DRILLING 4 0.008 0.007 0.007 0.009 DRILLS 5 0.010 0.009 0.008 0.011 6 0.012 0.011 0.010 0.013 LFTA 8 0.016 0.014 0.013 0.017 SUTAHSS-HSS/CO 10 0.019 0.017 0.015 0.021 12 0.022 0.019 0.017 0.024 14 0.024 0.022 0.019 0.027 16 0.027 0.024 0.022 0.030 20 0.033 0.030 0.026 0.036 ap x ae ≤ D5 0.5D x D 0.5D x D 0.25D x D 0.25D x D CARBIDE END-MILLS G2 MDTA HF VH/UP MEF ALU MEX/MH UH/MH HSS END-MILLS CARBIDE BURRS PARAMETERS SUGGESTED WITH HIGH POWER MILLING CHUCK AND STABLE MACHINING CONDITION 377