Bottom Knife Overlocker Singer 14u
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If your overlocker is not cleanly trimming fabric edge, it is most lightly that the blades or knives are becoming blunt and need to be replaced. In fact lots of stitching problems are caused by the cutters being in less than perfect condition. This lower fixed / bottom one is for Singer 14U. It is held in place by a small clamp and screw.
Genuine Singer product.
Great service, blade fits old machine