DBx1 SF, 16x231 SF — SCHMETZ industrial sewing machine needles for extra-fine knitwear, 10 pcs.

DBx1 SF, 16x231 SF are SCHMETZ industrial sewing machine needles designed for ultra-fine knitwear. The extra-slim SF design helps pierce very fine knits gently, reducing the risk of thread damage, visible stitch holes, and seam puckering.

Features of SF Needles

SF (Extra Slim Needle) is a needle with a special geometry, featuring a very slim working section, a reduced cross-section around the eye, and a rounded point. Its design is intended for sewing particularly delicate knits, where standard needles can create stitch holes that are too large.

SF needles are slimmer than KN needles, especially around the eye and point. This helps reduce piercing force and preserve the structure of fine knitwear.

Suitable Materials and Applications

• Ultra-fine knitwear.
• Very fine knits, such as 40–42 gauge.
• Thin, delicate knitwear.
• Materials where minimizing thread damage and stitch hole size is important.
• Sewing tasks that require especially gentle fabric penetration.

Technical Specifications

• Manufacturer: SCHMETZ.
• Needle system: DBx1 SF.
• Alternative designation: 16x231 SF.
• Needle design: SF — Extra Slim Needle.
• Point shape: rounded ball point.
• Special geometry: extra-slim working section and needle eye area.
• Application: ultra-fine knitwear.
• Packaging: 10 needles.

Compatibility and Needle Selection

These needles are designed for industrial sewing machines that use the DBx1 or 16x231 needle system. Before purchasing, check the system and choose an NM size suitable for the sewing thread and material.

Recommendation: For particularly fine and delicate knitwear, compare the SF design with the KN design. SF is suitable when an especially small needle-made stitch hole is required.