The Upper + Lower Knife Set is a high-quality replacement cutting blade set designed for Brother serger and overlock sewing machines, including models 730, 730D, 730DE, 760D, 760DE, 925D, and 935D. This essential component ensures clean and precise fabric trimming during overlocking operations, delivering professional stitching results.

The knife set includes both upper and lower cutting blades that work together to trim excess fabric edges while the machine simultaneously stitches and finishes seams. This process helps create smooth, clean, and durable edges, making it ideal for garment manufacturing, tailoring, and textile production.

Manufactured from durable, high-grade steel, these cutting knives are designed for long-lasting sharpness and reliable performance even under continuous industrial use. They provide consistent cutting accuracy, reduce fabric fraying, and improve overall sewing efficiency.

This replacement knife set is perfect for restoring machine performance when original blades become dull or damaged. It is easy to install and ensures your Brother serger continues to deliver high-quality overlock stitching results.

Key Features:

• Upper + lower knife set for Brother serger machines
• Compatible with models 730, 730D, 730DE, 760D, 760DE, 925D, 935D
• High-quality industrial-grade steel blades
• Ensures clean and precise fabric cutting
• Improves overlock stitch finishing quality
• Durable and long-lasting sharpness
• Reduces fabric fraying and uneven edges
• Ideal for garment and textile production
• Easy installation and replacement
• Essential maintenance and repair part