24 ±0.04 PENTA 24-UN American UN (UNC, UNF, UNEF) Full Profile, Pentagonal External 2.4 4.0 Threading Precision Ground 60° Inserts with a Chipformer R Dimensions Designation TPI R IC908 PENTA 24-24-UN 24.0 0.13 • GROOVE-TURN PENTA 24-20-UN 20.0 0.16 • PENTA 24-18-UN 18.0 0.18 • PENTA 24-16-UN 16.0 0.21 • PENTA 24-14-UN 14.0 0.23 • • Dmin(inch)=5.435/TPI • Tolerance: Class 2A. For tools, see pages: PCADR/L (268) • PCADR/L-JHP (268) • PCHBR/L (269) • PCHPR/L (268) • PCHR/L-24 (265) • PCHR/L-24-JHP (266) 24 ±0.04 PENTA 24-W Whitworth (BSW, BSF, BSP), B.S.84-1956 DIN 259 Pentagonal 2.4 4.0 Full Profile, External Threading 55° Inserts with a Chipformer R Dimensions Designation TPI R IC908 PENTA 24-28-W 28.0 0.09 • PENTA 24-19-W 19.0 0.15 • PENTA 24-14-W 14.0 0.21 • • Dmin(inch)=5.435/TPI For tools, see pages: PCADR/L (268) • PCADR/L-JHP (268) • PCHBR/L (269) • PCHPR/L (268) • PCHR/L-24 (265) • PCHR/L-24-JHP (266) 24 ±0.04 PENTA 24-BSPT BSPT (British Standard Pipe) Full Profile, Pentagonal External 2.4 4.0 Threading Precision Ground 55° Inserts with a Chipformer R Dimensions Designation TPI R IC908 PENTA 24-19-BSPT 19.0 0.16 • PENTA 24-14-BSPT 14.0 0.22 • • Dmin(inch)=5.435/TPI For tools, see pages: PCADR/L (268) • PCADR/L-JHP (268) • PCHBR/L (269) • PCHPR/L (268) • PCHR/L-24 (265) • PCHR/L-24-JHP (266) 275