Industrial Sewing Machine Needles SCHMETZ DPx17-135x17-SD1 for Leather, 10 pcs.

SCHMETZ 135X17 SD1 (DPX17 SD1) industrial sewing machine needles with SD1 – small triangular tip (“TRI TIP”) are specially designed for neat, precise seams on leather and other dense materials. The SD1 tip combines a round needle with a very small triangular cut – about 10% of the stitch hole is cut by the tip, while the rest of the material is gently displaced by the conical round tip. The result is a straight, visually tidy seam with less cutting than classic leather cutting needles.

🧵 Most Suitable Materials

• Fine leather
• Garments made of natural and synthetic leather
• Thin synthetic leather materials
• Materials with PVC/PUR coating (tarpaulins, covers, tablecloths, etc.)
• Plastic, hard fibers, films, and technical coatings

🎯 Main Advantages

• SD1 – round tip with a small triangular cross-section – small cut, but very clean stitch
• Straight, neat seam with a uniform stitch appearance
• Precise stitch and less needle deviation than with a regular round “R” tip
• Smaller cut than when using a classic cutting needle – less material damage
• Suitable for multi-directional sewing – seam appearance remains consistent in all sewing directions (programmable machines)
• Chrome coating reduces friction and ensures long service life under intensive use

📐 Technical Specifications

• Needle system: 135X17 SD1, DPX17 SD1
• Needle tip: SD1 (Round point with small triangular tip / TRI TIP)
• Coating: Chrome
• Shank diameter: 2.0 mm
• Total length: 43.9 mm
• Length to needle eye: 38.9 mm
• Shank shape: without flattening
• Blade shape: straight
• Number of grooves: 1
• Stitch type: lockstitch sewing

🔧 Compatibility

Designed for lockstitch (lockstitch) industrial sewing machines using the needle system 135X17 SD1 / DPX17 SD1 (without shank flattening). Ideal for leather products, technical coatings, and multi-directional decorative seams.

Set includes: 10 industrial sewing machine needles with SD1 “TRI TIP” tip.