Loop End Mainspring Winder a very simple, economical mainspring winder for loop end mainsprings. This loop end mainspring winder, winds springs on the main wheel. 2 3/8" x 3 3/4".
Loop End Mainspring Winder a very simple, economical mainspring winder for loop end mainsprings. This loop end mainspring winder, winds springs on the main wheel. 2 3/8" x 3 3/4".