1. I-BSPT 55 ° yokufaka intambo, ukufakwa kwentambo yangaphandle nangaphakathi kuhlangabezana nesimo esihlukile sokusika, i-chip breaker ephelele igwema ukukhuhla kwe-workpiece. Impilo yamathuluzi ezinzile kanye nokusebenza komshini. Isetshenziselwa insimbi, insimbi engagqwali, insimbi ekhonjiwe. Isitoko esikhulu, ukulethwa okusheshayo.

I-NPT 60° yokufaka intambo, okufakwayo kokulutha kwangaphandle nangaphakathi kuhlangabezana nezimo ezihlukene zokusika, i-chip breaker ephelele igwema ukuklwelwa kocezu lokusebenza. Isetshenziselwa insimbi, insimbi engagqwali, insimbi ekhonjiwe. Ikhwalithi ephezulu ngentengo efanelekile.

I-Whitworth 55° yokufaka imicu enezintambo zangaphandle nezangaphakathi, unqenqema oluhlukile lokusika kanye nedizayini ye-chip breaker ifinyelela ukusebenza okuhle kakhulu kwemishini. Isetshenziselwa insimbi, insimbi engagqwali, insimbi ekhonjiwe. Ibanga eliphelele, isitoko esikhulu, ukulethwa okusheshayo.

I-V-profile 55° kanye no-60°No-topping threading insert , ukufakwa kokulutha kwangaphandle nangaphakathi kusetshenziselwa izimo ezihlukahlukene zomshini, i-fan-pitch ingase isetshenziswe ku-pitch ehlukene yomshini womshini, ukunciphisa isitokwe samathuluzi okusika. Isetshenziselwa insimbi, insimbi engagqwali, insimbi ekhonjiwe. Ikhwalithi yamathuluzi azinzile ifinyelela ukusebenza komshini ozinzile.

I-Metric 60° yokufaka imicu, okokufaka kokulutha kwangaphandle nangaphakathi kusetshenziselwa isimo esihlukile somshini, unqenqema olukhethekile lokusika kanye nomklamo we-chip breaker kuzuza ukusebenza komshini osebenza kahle kakhulu. Isetshenziselwa insimbi, insimbi engagqwali, insimbi ekhonjiwe, insimbi ye-alloy. Ibanga eliphelele, intengo yokuncintisana ngempela.