® Mill - Thread Inserts NPS Same Insert for External and Internal thread Pitch Insert Size = A TPI 12 14 21 30 40 18 * 12-18 NPS 14-18 NPS 14 14-14 NPS 21-14 NPS 11.5 21-11.5 NPS 30-11.5 NPS 40-11.5 NPS 8 30- 8 NPS 40- 8 NPS Order example: 30-11.5 NPS MT7 * One cutting edge NPSF Same Insert for External and Internal thread Pitch Insert Size = A TPI 12 14 21 30 40 18 * 12-18 NPSF 14-18 NPSF 14 14-14 NPSF 21-14 NPSF 11.5 21-11.5 NPSF 30-11.5 NPSF 40-11.5 NPSF 8 30- 8 NPSF 40- 8 NPSF Order example: 21-14 NPSF MT7 * One cutting edge B01-7