Series 66M, 66MCRAeAp AeVcDiameter (D (mm)1)
MetricHardnessAe x D1Ap x D1(m/min)681012162025
Profile194RPM10260769561565130384730782462
CARBON STEELS≤ 0.05≤ 1(155-232)Fz0.0290.0470.0590.0720.0950.1010.105
1018, 1040, 1080, 1090 10L50 1140≤ 275 Bhn orFeed (mm/min)2068252825283324328034312844
, , , 1212, 12L15, 1525, 1536≤ 28 HRcFinish232RPM12312923473876156461736932955
≤ 0.02≤ 2(186-279)Fz0.0230.0380.0470.0580.0760.0810.084
PFeed (mm/min)1985242724273191314932942730
Pfil110RPM5816436234902908218117451396
roe≤ 0.05≤ 1Fz0.0220.0360.0450.0550.0740.0800.080
ALLOY STEELS 4140, 4150, 4320,≤ 375 Bhn(88-132)Feed (mm/min)879110811071445145715361229
5120, 5150, 8630, 86L20, 50100or ≤ 40 HRcFinish132RPM6980523541883490261720941675
≤ 0.02≤ 21018Fz0.0170.0290.0360.0440.0590.0640.064
(5-5)Feed (mm/min)844106310631387139914741179
Pfil88RPM4686351428112343175714061125
roe≤ 0.05≤ 171106Fz0.0140.0260.0320.0380.0510.0560.055
TOOL STEELS≤ 375 Bhn(-)Feed (mm/min)472630630810810866680
H A2, D2, H13, L2, M2, P20, S7, T15, W2or ≤ 40 HRcFiih106RPM5623421733742811210816871349
ns≤ 0.02≤ 2Fz0.0120.0200.0260.0310.0410.0450.044
(85-127)Feed (mm/min)453605605777777831653
Profile215RPM11391854368345695427134172734
CAST IRONS≤ 0.05≤ 1Fz0.0290.0470.0590.0720.0950.1010.105
(LOW & MEDIUM≤ 220 Bhn(172-258)Feed (mm/min)2296280728073690364138093158
ALLOY) Gray, Malleable,or ≤ 19 HRcFiih258RPM136691025282016834512641013281
Ductilens≤ 0.02≤ 2Fz0.0230.0380.0470.0580.0760.0810.084
(206-309)Feed (mm/min)2204269526943543349636573031
KProfile165RPM8725654452354362327226172094
≤ 0.05≤ 1(132198)Fz0.0220.0360.0450.0550.0740.0800.080
CAST IRONS (HIGH ALLOY)≤ 260 Bhn-Feed (mm/min)1319166116612167218623031843
Gray, Malleable, Ductileor ≤ 26 HRcFinish198RPM10470785262825235392631412513
≤ 0.02≤ 2Fz0.0170.0290.0360.0440.0590.0640.064
(158-237)Feed (mm/min)1266159515952080209922111769
Profile171RPM9048678654294524339327142171
≤ 0.05≤ 1Fz0.0220.0360.0450.0550.0740.0800.080
STAINLESS STEELS (FREE MACHINING)≤ 275 Bhn(137-205)Feed (mm/min)1368172317232247226723891911
M 303, 416, 420F, 430F, 440For ≤ 28 HRcFinish137RPM7238542943433619271421711737
≤ 0.02≤ 2Fz0.0170.0290.0360.0440.0590.0640.064
(109-164)Feed (mm/min)875110311031438145115291223

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