
Y R Y Y R IR/L-W X di Internal Whitworth (BSW, BSF, BSP) X X B.S.84-1956 DIN 259 Medium Class l l l Full Profile Laydown Threading Inserts di di Internal left-hand shown NUT Dimensions Tough 1 Hard R0.137P 55° THREADING R0.137P SCREW Designation di TPI l R X Y Z (3) IC228 IC928 IC50M IC250 IC08 IC508 IC808 IC908 IC1007 06IR 26 W 3.97 26.0 6.00 0.10 0.7 0.6 1 • 06IR 20 W 3.97 20.0 6.00 0.14 0.6 0.7 1 • 08IR 28 W 4.76 28.0 8.00 0.09 0.6 0.6 1 • 08IR 24 W 4.76 24.0 8.00 0.11 0.6 0.6 1 • 08IR/L 19 W 4.76 19.0 8.00 0.15 0.6 0.7 1 • • 08IR 18 W 4.76 18.0 8.00 0.16 0.6 0.7 1 • 08IR 16 W 4.76 16.0 8.00 0.18 0.6 0.7 1 • 08UIRL 12 W 4.76 12.0 8.00 0.25 0.9 4.0 1 • 11IR 36 W 6.35 36.0 11.00 0.07 0.6 0.6 1 • 11IR 28 W 6.35 28.0 11.00 0.10 0.6 0.7 1 • 11IRB 28 W 6.35 28.0 11.00 0.10 0.6 0.6 1 • 11IR 26 W 6.35 26.0 11.00 0.10 0.7 0.7 1 • 11IR/L 24 W 6.35 24.0 11.00 0.11 0.7 0.8 1 • • 11IRB 24 W 6.35 24.0 11.00 0.11 0.6 0.6 1 • 11IR 20 W 6.35 20.0 11.00 0.14 0.8 0.9 1 • • • 11IRB 20 W 6.35 20.0 11.00 0.14 0.8 0.9 1 • 11IR 19 W 6.35 19.0 11.00 0.15 0.8 1.0 1 • • • • 11IRB 19 W 6.35 19.0 11.00 0.14 0.8 0.9 1 • 11IR/L 18 W 6.35 18.0 11.00 0.16 0.8 1.0 1 • • • 11IRB 18 W 6.35 18.0 11.00 0.16 0.8 0.9 1 • 11IR 16 W 6.35 16.0 11.00 0.18 0.9 1.1 1 • • 11IRB 16 W 6.35 16.0 11.00 0.18 0.8 0.9 1 • 11IR/L 14 W 6.35 14.0 11.00 0.21 0.9 1.1 1 • • • • • • • 11IRB 14 W 6.35 14.0 11.00 0.21 0.8 0.9 1 • 11IL 12 W 6.35 12.0 11.00 0.27 1.0 1.1 1 • 16IR 40 W 9.52 40.0 16.00 0.06 0.6 0.6 1 • 16IR/L 32 W 9.52 32.0 16.00 0.09 0.6 0.6 1 • 16IR/L 28 W 9.52 28.0 16.00 0.09 0.6 0.7 1 • • 16IR 26 W 9.52 26.0 16.00 0.10 0.7 0.7 1 • • • 16IR/L 24 W 9.52 24.0 16.00 0.11 0.7 0.8 1 • • • 16IR/L 22 W 9.52 22.0 16.00 0.13 0.8 0.9 1 • • • 16IR/L 20 W 9.52 20.0 16.00 0.14 0.8 0.9 1 • • • • 16IRM 20 W (1) 9.52 20.0 16.00 0.14 0.8 0.9 1 • 16IR/L 19 W 9.52 19.0 16.00 0.15 0.8 1.0 1 • • • • 16IRB 19 W (1) 9.52 19.0 16.00 0.15 0.8 1.0 1 • 16IRM 19 W (1) 9.52 19.0 16.00 0.15 0.8 1.0 1 • 16IR/L 18 W 9.52 18.0 16.00 0.16 0.8 1.0 1 • • • 16IR/L 16 W 9.52 16.0 16.00 0.18 0.9 1.1 1 • 16IRB 16 W (1) 9.52 16.0 16.00 0.18 0.9 1.1 1 • 16IRM 16 W (1) 9.52 16.0 16.00 0.18 0.9 1.1 1 • • 16IR/L 14 W 9.52 14.0 16.00 0.21 1.0 1.2 1 • • • • • • 16IR 14 W 2M (2) 9.52 14.0 16.00 0.23 1.7 2.7 2 • • 16IRB 14 W (1) 9.52 14.0 16.00 0.21 1.0 1.2 1 • 16IRM 14 W (1) 9.52 14.0 16.00 0.21 1.0 1.2 1 • • • • 16IR/L 12 W 9.52 12.0 16.00 0.25 1.1 1.4 1 • • • 16IR/L 11 W 9.52 11.0 16.00 0.27 1.1 1.5 1 • • • • • • 16IRB 11 W (1) 9.52 11.0 16.00 0.27 1.1 1.5 1 • 16IRM 11 W (1) 9.52 11.0 16.00 0.27 1.1 1.5 1 • • • • • 16IR/L 10 W 9.52 10.0 16.00 0.31 1.1 1.5 1 • • • 16IRB 10 W (1) 9.52 10.0 16.00 0.31 1.1 1.5 1 • 16IR/L 9 W 9.52 9.0 16.00 0.34 1.2 1.7 1 • • 16IR/L 8 W 9.52 8.0 16.00 0.39 1.2 1.5 1 • • • 22IR 14 W 3M (2) 12.70 14.0 22.00 0.21 2.8 4.5 3 • 22IR 11 W 2M (2) 12.70 11.0 22.00 0.27 2.3 3.4 2 • 22IR 7 W 12.70 7.0 22.00 0.45 1.6 2.3 1 • • 22IR 6 W 12.70 6.0 22.00 0.52 1.6 2.3 1 • • 22IR/L 5 W 12.70 5.0 22.00 0.65 1.7 2.4 1 • • 27IR 4.5 W 15.88 4.5 27.00 0.73 1.8 2.6 1 • 27IR 4 W 15.88 4.0 27.00 0.82 2.0 2.9 1 • • For Insert Identification System, see page 489 • Tolerance: medium class. • For technical information and detailed cutting data, see pages 536-546 • For recommended number of passes for multi-tooth inserts see page 544 (1) With pressed chipformer. (2) Multi-tooth (3) Number of teeth per corner. For tools, see pages: MGSIR/L (534) • SIR/L (531) 508 ISCAR