Description
It is designed for all kinds of sewing machine with
special use. Besides, its volume dose of Bobbin is two times than common Rotary Hook. This kind of Rotary
Hook has featuring code as "4”
and mark as "KRP、HRT”. For example, KRP-21, 41, 271, 457, 750; HRT-11, 12, 14, 17, 18,
19, 21, 22, 31, 51, 67, 68, 108, 132, 136.