Upper Knife for Cutting and Sewing / Overlock (Ref. 1250014-229)

The blades of a serger are the heart of a perfect finish. With intensive use, and especially when cutting thick fabrics or sewing over pins, the upper knife loses its cutting edge (becomes dull) or gets small dents.
This replacement upper blade (moving knife) restores clean and precise cutting to your overlock machine. It is essential to replace the knives as soon as you notice that the machine is fraying the fabric instead of cutting it straight, to avoid straining the motor.
(Original and equivalent references: 1250014-229, 1250014229)