® Mill - Thread Inserts WHIT BSW, BSF, BSP Same Insert for External and Internal thread. Pitch Insert Size = A TPI 12 14 21 30 40 24 14-24 W 20 14-20 W 21-20 W 19 * 12 - 19 W 14-19 W 21-19 W 18 14-18 W 16 14-16 W 21-16 W 30-16 W 14 14-14 W 21-14 W 30-14 W 12 14-12 W 21-12 W 11 *14-11 W 21-11 W 30-11 W 40-11 W 10 21-10 W 8 40- 8 W * One cutting edge Order example: 21-11 W MT7 BSPT Conical pipe thread inserts are one-sided and may be used for both External and Internal threading. Pitch Insert Size = A TPI 12 14 21 30 40 19 12-19 BSPT 14-19 BSPT 14 14-14 BSPT 21-14 BSPT 11 21-11 BSPT 30-11 BSPT 40-11 BSPT Order example: 14-19 BSPT MT7 For conical preparation end mills see page B08-23 B01-5