Single needle, Drop Feed, Lockstitch, Large Hook.
Applications:
1. For sewing medium to heavy weight materials, cylindrical objects, bags, sports shoes, surfing suits, boots, sports goods, sails, tarpaulins,garments, stretchable materials, rubber coated cloth, leather goods, & joining multi-layer pieces. (seamless sewing)
2. Particularly well suited for difficult proceeding material, such as slippery surfaces, flexible or adhesive materials.
3. 2-step, 3-step zig zag sewing enhance power[...]