Sewing Machine Knives

Shop Replacement Serger Blades at WAWAK Sewing Supplies.

Never have a dull moment with your serger: find sharp serger blades at WAWAK! Changing the knives on a serger or overlock machine is important to keep it running in top condition. Serger blades trim the fabric as you sew for a professionally finished edge, and can wear down and become dull with regular use. You’ll know a blade needs to be replaced when your fabric isn’t cutting as cleanly—if the fabric is fraying, for example—or if you find nicks or imperfections on the blade after visually inspecting it. To find the replacement overlocker blades that will work for your serging machine, enter the manufacturer and model number of your serger machine into the “Filter by Manufacturer” fields on the left side of the page. This will narrow your results to only the serging machine knives that fit your exact machine. We offer upper and lower knives, chain cutters, moving blades, counter knives, overlock thread trimmers, and more. Shop serger blades here to find the correct replacement parts for your serger.

Frequently Asked Questions About Sewing Machine Knives

Can serger blades be sharpened?

It's not recommended to try to sharpen serger blades, as they require very precise sharpening and can be very difficult to sharpen due to their unique shape.

How do I know if my serger blade is dull?

If you notice that your serger isn't cutting fabrics cleanly—or isn't cutting them at all—that may be an indication of dull blades. This could include frayed or unevenly cut edges, the machine "chewing" the fabric, or frequent jams. Upon visual inspection, the blades might also have an uneven appearance, such as nicks or shiny spots.