Dies are replaceable when worn (use standard No. 216884 dies). Replaces OEM OTC 7402. Wide Thread Coverage: Includes six standard dies covering 16 different TPI ranges (4 to 24 TPI). 6 x Standard Dies (TPI: 4,5,6,7,7‑1/2,8,9,10,11,11‑1/2,12,14,16,18,20,24 – multiple dies cover all listed pitches).