Tapping tools | CoroTap® 300 CoroTap® 300, cutting tap with spiral flutes​​ Thread form: NPTF Common data values THCHT SUBSTRATE COATING C = 2-3xTP HSS-E PVD FeN Imperial (inch) P M K B145 B145 B145 Ordering code TDZ TD DCONMS TPI LU TCTR LF THL NOF PHD BSG [inch] [inch] [inch] [inch] [inch] [inch] T300-XM100AM-1/16 ● ● ● NPTF 1/16-27 0.301 0.313 27 2.205 Normal 3.150 0.551 3 0.244 DIN 2184-1/ANSI T300-XM100AM-1/8 ● ● ● NPTF 1/8-27 0.393 0.437 27 2.520 Normal 3.543 0.551 4 0.331 DIN 2184-1/ANSI T300-XM100AM-1/4 ● ● ● NPTF 1/4-18 0.524 0.562 18 2.323 Normal 3.937 0.787 4 0.429 DIN 2184-1/ANSI T300-XM100AM-3/8 ● ● ● NPTF 3/8-18 0.660 0.700 18 2.638 Normal 4.331 0.787 5 0.561 DIN 2184-1/ANSI T300-XM100AM-1/2 ● ● ● NPTF 1/2-14 0.824 0.687 14 3.110 Normal 4.921 1.024 5 0.699 DIN 2184-1/ANSI T300-XM100AM-3/4 ● ● ● NPTF 3/4-14 1.034 0.906 14 3.071 Normal 5.512 1.024 5 0.906 DIN 2184-1/ANSI ● = First choice ○ = Good choice 587