Center Drills Intro AUPES HSS COATING SP SL PO ST YMW ROLL 631 Vc (m/min) H P1 H P2 CARBIDE H P3 H P4 P5 P6 H P7 LONG P8 H M1 H M2 M3 H K1 HAND H K2 TAPS K3 K4 H N1 H N2HN3 EG (STI) H N4 N5 S1 (<35 HRC)S2 (<35 HRC)S3 (35 ÷ 45 HRC)S5 SPECIALTHREADS,GAUGES H (45 ÷ 55 HRC) H (55 ÷ 63 HRC) THREAD MILLS DIES CENTER DRILLS Technical info 615