SERIES 47Y_UN_RA (CHIP-SURFER STYLE) SOLID CARBIDE THREAD MILLING TIP - INTERNAL THREAD MILLS FOR UN THREAD Int. Thread 60° P T1 D1 L1 L2 P D1 L1 T1 L2 Pitch Eff. Nominal Length Thread Extension Cutter Number (TPI) UNC UNF UNEF Flutes Diameter of Cut Size Length 47Y-24UNTQRA13 IN2005 24 - - 9/16 & 5/8 4 0.394 0.252 T05 0.526 47Y-20UNTQRA13 IN2005 20 - 1/2 - 4 0.394 0.252 T05 0.526 47Y-18UNTQRA13 IN2005 18 - 9/16 & 5/8 1-1/8 & 1-5/8 4 0.394 0.220 T05 0.526 47Y-16UNT6RA17 IN2005 16 - 3/4 - 4 0.472 0.315 T06 0.671 47Y-14UNT8RA21 IN2005 14 - 7/8 - 5 0.630 0.500 T08 0.821 47Y-12UNT8RA21 IN2005 12 - 1 & 1-1/2 - 5 0.630 0.500 T08 0.821 47Y-10UNT8RA21 IN2005 10 3/4 - - 4 0.602 0.500 T08 0.821 47Y-09UNT8RA21 IN2005 09 7/8 - - 3 0.630 0.445 T08 0.821 Operating guidelines on page 700. For chip surfer shank selection, see page 422. HARDWARE Wrench Optional Torque Wrench 47Y-24UNTQRA13 IN2005 WS-0043 DT-60-06 47Y-20UNTQRA13 IN2005 WS-0043 DT-60-06 47Y-18UNTQRA13 IN2005 WS-0043 DT-60-06 47Y-16UNT6RA17 IN2005 WS-0029 DT-90-08 47Y-14UNT8RA21 IN2005 WS-0030 DT-130-10 47Y-12UNT8RA21 IN2005 WS-0030 DT-130-10 47Y-10UNT8RA21 IN2005 WS-0030 DT-130-10 47Y-09UNT8RA21 IN2005 WS-0030 DT-130-10 556