Serger Knife Set Carbide Tip for Singer & Compatible Models - 412585/412749

Upper & Lower Knife Set designed for serger machines that use Singer part numbers 412585 and 412749. This replacement set includes the upper knife and lower knife needed to help maintain clean, accurate cutting performance on compatible overlock and serger models.

The upper knife features a carbide tip for added cutting durability. Use this set as a practical replacement when your current knives are dull, damaged, or no longer delivering a clean trim during sewing. It is a strong fit for routine maintenance on serger machines used in home sewing, alterations, and garment construction.

Compatible with many serger models, including:

• Babylock serger models BL202, BL302, BL400, BL430, BL432, BL450A, BL4350D, BL5030, BL5040, BL5040L
• Elna serger T-3, T-33, T-34, T-34D
• Happylock 1867
• Omega serger 303SI, 334D, 15J103, 15J134
• Pfaff serger 756
• Riccar serger RL564DE, RL613, RL613E, RL624, RL624E, RL634DE, RL634E, RL724E
• Serge-Mate models 300, 430, SW432, 4350D, 5030
• Singer 14U style models including 14SH644, 14SH654, 14u12a, 14u13, 14u32, 14u34a, 14u34b, 14u44, 14u46, 14u52a, 14u53, 14u64a, 14u65, 14u85, 14u234, 14u244, 14u285, 14u28, 14u344, 14u354, 14u444, 14u454, 14u544, 14u554, 14u555, 14u557, PRO4D, Singer Merritt
• Simplicity serger models SL200, SL350, SL370, SL390, SL803, SL804, SL804D, SL843, SL4300, SL4300ED, SL4360ED

Replacement part references include upper knife 412585 and lower knife 412749, with alternate part numbers listed for cross-reference. A dependable choice for keeping your serger cutting system working properly.