YT-17684 THREAD REPAIR KIT M12X1.25MM 20 PIECES Brand Yato Symbol YT-17684 Thread size M12x1.25 mm Tap material HSS 4341 Drill material HSS 4241 Spiral insert material stainless steel Number of pieces in the set 20 Set contents single-step tap to make a thread for a new insert, spiral insert x15 (M12x1.25), knob for screwing in spiral inserts, punch, drill to ream out the damaged thread, Set contents cont. hexagonal key Designed for replacing broken threads with new ones. The set elements are made of durable stainless steel. Contents of the set (20 elements): single-step tap for making a thread for a new HSS insert spiral insert x 15 (M12x1.25) knob for screwing in spiral inserts, punch drill for drilling out damaged HSS thread hexagonal key Size: M12 x 1.25 mm