PART SERIES SERIES 12Y5N (21MM) PINADRETXSAEBRLIESTHREAD MILLS - CARBIDE SHANK aIpnpt.liTcahtrieoand1 aEpxptl.icTahtrioenad2 apCploicoaltaionnt 3 application 4 application 5 application 6 application 7 D3 D1 D2 a L1 L1 D2 Overall Cutter Number a D1 Shank D3 Length 12Y5N-08060S6R01 0.827 0.820 0.625 0.630 8.000 Operating guidelines on page 700. 570