PART SERIES SERIES 12Y1S (30MM) PINADRETXSAEBRLIESTHREAD MILLS aIpnpt.liTcahtrieoand1 aEpxptl.icTahtrioenad2 apCploicoaltaionnt 3 application 4 application 5 application 6 application 7 D3 D1 D2 a L2 L1 L1 L2 D2 Overall Extension No. of Cutter Number a D1 Shank D3 Length Length Flutes 12Y1S-1102080R01 1.181 1.140 1.000 0.910 4.270 1.970 1 12Y1S-1203780R01 1.181 1.240 1.000 0.910 6.000 1.970 1 12Y1S-1503781R01 1.181 1.500 1.250 0.910 6.000 1.970 1 12Y1S-1502881R01 1.181 1.580 1.250 1.180 6.000 1.970 2 Operating guidelines on page 700. 564