Sewing Machine Knife Set Carbide Tip for Singer Serger Models - 412585 / 550449

Keep your serger cutting cleanly with this upper and lower knife set designed for compatible Singer, Consew, Omega, Pfaff, and Viking machines. This replacement set includes the upper knife and lower knife needed to restore reliable trimming performance on overlock and coverlock applications.

The upper knife features a carbide tip for added cutting durability, helping support consistent fabric trimming during regular sewing use. Use this set when your current blades are dull, damaged, or no longer delivering a clean edge.

Part numbers:

• Upper Knife: 412585
• Lower Knife: 550449
• Alternate Upper Knife Numbers: 93-414125-85/000, 416321701, 416669301
• Alternate Lower Knife Numbers: 93-415504-49/000, 416325901

Compatible machine families include: Singer 14CG, 14HD, 14SH, 14U, and PRO4D series; Consew 14TU models; Omega 303SI, 334D, 15J103, 15J134; Pfaff Hobbylock and Coverlock models; and Viking Huskylock S15.

This knife set is a practical replacement part for maintaining cutting accuracy and helping your machine perform as intended on compatible models.