Kanas, I have three tap sets,a craftsmans combo set (my first I keep at the house)a KD standard set,a snap on metric set, I have broken three taps in 13 years, a 5mm in a mikuni carb,a 1/4 in a old chevy 4wd block,and a 8mm oversize tap in a chrysler 3.5 ,the ... Login to read more.