Series 66, 66CRAeAp AeVcDiameter ( (inch)D1)
FractionalHardnessAe x D1Ap x D1(sfm)3/161/43/81/25/83/41
Profile385RPM7844588339222941235319611471
≤ 0.05≤ 1(308462)Fz0.00050.00070.00140.00180.00230.00240.0026
STAINLESS STEELS (DIFFICULT)≤ 275 Bhn-Feed (ipm)27.528.838.447.748.751.842.1
304, 304L, 316, 316Lor ≤ 28 HRcFinish462RPM9412705947063530282423531765
≤ 0.02≤ 2(370-554)Fz0.00040.00060.00110.00140.00180.00190.0021
MFeed (ipm)26.427.736.945.746.849.740.4
Pfil355RPM7233542436162712217018081356
roe≤ 0.05≤ 1Fz0.00050.00070.00140.00180.00230.00240.0026
STAINLESS STEELS (PH)≤ 325 Bhn(284-426)Feed (ipm)25.326.635.443.944.947.738.8
13-8 PH, 15-5 PH, 17-4 PH, Custom 450or ≤ 35 HRcFinish426RPM8679650943403255260421701627
≤ 0.02≤ 2(341511)Fz0.00040.00060.00110.00140.00180.00190.0021
-Feed (ipm)24.325.534.042.243.145.837.2
Pfil105RPM213916041070802642535401
SUPER ALLOYSroe≤ 0.05≤ 1Fz0.00050.00070.00140.00180.00230.00240.0026
(NICKEL, COBALT, IRON BASE≤ 300 Bhn(84-126)Feed (ipm)7.57.910.513.013.314.111.5
) Inconel 601, 617, 625,or ≤ 32 HRcFiih126RPM256719251284963770642481
Incoloy, Monel 400ns≤ 0.02≤ 2Fz0.00040.00060.00110.00140.00180.00190.0021
(101-151)Feed (ipm)7.27.510.112.512.813.611.0
Profile85RPM17321299866649520433325
SUPER ALLOYS≤ 0.05≤ 1Fz0.00030.00050.00090.00110.00140.00150.0016
(NICKEL, COBALT, IRON BASE)≤ 400 Bhn(68-102)Feed (ipm)3.64.55.56.46.57.15.7
Inconel 718, X-750, Incoloy Waspaloyor ≤ 43 HRc102RPM207815591039779623520390
, , Hastelloy, ReneFinish≤ 0.02≤ 2Fz0.00020.00040.00070.00090.00110.00120.0013
(82-122)Feed (ipm)3.54.45.26.26.36.95.5
SPfil390RPM7946595939732980238419861490
TITANIUM ALLOYSroe≤ 0.05≤ 1(312-468)Fz0.00050.00080.00150.00210.00260.00270.0029
Pure Titanium, Ti6Al4V≤ 350 BhnFeed (ipm)27.833.441.756.355.859.047.5
, Ti6Al2Sn4Zr2Mo,or ≤ 38 HRcFinish468RPM9535715147673576286023841788
Ti4Al4Mo2Sn0.5Si≤ 0.02≤ 2Fz0.00040.00060.00120.00170.00210.00220.0023
(374-562)Feed (ipm)26.732.040.054.153.556.645.6
Profile140RPM2852213914261070856713535
TITANIUM ALLOYS (DIFFICULT)≤ 0.05≤ 1Fz0.00050.00080.00150.00210.00260.00270.0029
Ti10Al2Fe3Al, Ti5Al5V5Mo3Cr,≤ 440 Bhn(112-168)Feed (ipm)10.012.015.020.220.021.217.1
Ti7Al4Mo, Ti3Al8V6Cr4Zr4Mo,or ≤ 47 HRcFinish168RPM34232567171112841027856642
Ti6Al6V6Sn, Ti15V3 Cr3Sn3Al≤ 0.02≤ 2Fz0.00040.00060.00120.00170.00210.00220.0023
(134-202)Feed (ipm)9.611.514.419.419.220.316.4

Bhn (Brinell) HRc (Rockwell C) rpm = Vc x 3.82 / D 1 ipm = Fz x number of flutes x rpm reduce speed and feed for materials harder than listed