NC starting drills

CUTTING PARAMETERS

Material Group ISO 513P1 P2P3 P4P5P6P7P8
Hardness/Rm500÷700 N/mm²600÷1000 N/mm²900÷1200 N/mm²1200÷1400 N/mm²
Vc (m/min)90÷11070÷9060÷8050÷7050÷7020÷30
Dfnfnfnfnfnfn
(mm)(mm/rev)(mm/rev)(mm/rev)(mm/rev)(mm/rev)(mm/rev)
60.1400.1260.1120.0980.0910.055
70.1600.1440.1280.1120.1040.062
80.1800.1620.1440.1260.1170.070
90.2000.1800.1600.1400.1300.078
100.2200.1980.1760.1540.1430.086
110.2400.2160.1920.1680.1560.094
120.2600.2340.2080.1820.1690.101
130.2800.2520.2240.1960.1820.109
140.3000.2700.2400.2100.1950.117
150.3200.2880.2560.2240.2080.125
160.3400.3060.2720.2380.2210.133
Material Group ISO 513M1M2M3
Hardness/Rm
Vc (m/min)50÷7040÷6030÷40
D (mm)fn (mm/rev)fn (mm/rev)fn (mm/rev)
60.0910.0730.064
70.1040.0830.073
80.1170.0940.082
90.1300.1040.091
100.1430.1140.100
110.1560.1250.109
120.1690.1350.118
130.1820.1460.127
140.1950.1560.137
150.2080.1660.146
160.2210.1770.155

ISO 513

Hardness/Rm 150÷250 HB 150÷350 HB 120÷260 HB 250÷500 HB

MDTA HF VH/UP MEF

Material Group ISO 513K1K2K3K4
Hardness/Rm150÷250 HB150÷350 HB120÷260 HB250÷500 HB
Vc (m/min)90÷11070÷9060÷8050÷70
D (mm)fn (mm/rev)fn (mm/rev)fn (mm/rev)fn (mm/rev)
60.1400.1260.1120.098
70.1600.1440.1280.112
80.1800.1620.1440.126
90.2000.1800.1600.140
100.2200.1980.1760.154
110.2400.2160.1920.168
120.2600.2340.2080.182
130.2800.2520.2240.196
140.3000.2700.2400.210
150.3200.2880.2560.224
160.3400.3060.2720.238

HSS END-MILLS

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