ROUND POINT WITH SMALL TRIANGULAR TIP "SD1"

Schmetz 135x17 SD1 Industrial Sewing Machine Needles – Round Point with Small Triangular Tip

The Schmetz 135x17 SD1 industrial sewing machine needles, also designated as DPx17 SD1, are precision-engineered for sewing fine leather, synthetic materials, and coated fabrics. Featuring the SD1 (TRI TIP) point style—a round point with a small triangular incision—these needles allow for clean, straight seams while reducing material damage, especially on delicate or coated surfaces.

The SD1 point cuts approximately 10% of the stitch hole while displacing the remaining 90%, ensuring minimal material penetration with maximum seam integrity. Ideal for multi-directional sewing machines, the stitch appearance remains consistent across all directions—perfect for programmable operations.

Key Specifications:

• Needle System: 135x17 SD1 / DPx17 SD1

• CANU Code: 37:20ME1

• Point Style: SD1 (Round Point with Small Triangular Tip)

• Shank Diameter: 2 mm

• Overall Length: 43.7 mm

• Length to Eye: 38.9 mm

• Type of Coating: Chrome

• Stitch Type: Lockstitch

• Blade Shape: Straight

• Shank Flattening: None

Applications / Highlights:

• Fine and synthetic leather materials

• Garments made from imitation leather

• PVC/PUR coated textiles

• Tarpaulins, tents, and coated tablecloths

• Multi-directional stitching with consistent seam appearance

• Gentle cutting with reduced material stress