{"product_id":"c-s-osborne-upholstery-curved-3-square-point-needle-set-3-4-5-6-precision-for-heavy-fabrics","title":"C.S. Osborne Upholstery Curved 3-Square-Point Needle Set — 3\", 4\", 5\", 6\" | Precision for Heavy Fabrics","description":"\u003cp\u003e\u003cstrong\u003eThe C. S. Osborne K-4 is a set of curved, 3-square-point needle cards for upholstery, supplied in 3\", 4\", 5\" and 6\" lengths to tackle tight corners, piping and layered fabric work.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eBuilt for professional upholsterers and serious DIYers, this K-4 needle card collection from C. S. Osborne brings four sizes of precision curved needles that glide through heavy fabrics, webbing and multi-layer seams. Each needle has a three-sided square point that reliably pushes through tough materials without twisting or bending, while the curved profile gives better access around frames, springs and cushions. The set covers small detail work up to longer passes across thick assemblies so you can choose the right length for every task.\u003c\/p\u003e\n\n\u003ch3\u003eWhat makes the 3-square point design useful for upholstery?\u003c\/h3\u003e\n\u003cp\u003eThe three-sided square point concentrates force to cut through dense upholstery layers, preventing the rounded burrs and snags that blunt conventional needles. It reduces the tendency for the needle to wander, which keeps stitch lines straight and upholstery surfaces neat.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSquare point delivers a clean, controlled entry through heavy fabrics.\u003c\/li\u003e\n  \u003cli\u003eLess fibre displacement means reduced fraying at stitch points.\u003c\/li\u003e\n  \u003cli\u003eImproved guidance through multiple layers and webbing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the curved shape help during installation?\u003c\/h3\u003e\n\u003cp\u003eCurved needles allow you to work around corners, behind springs, and into tight channels where a straight needle can't reach. The arc gives your hand better leverage and sightlines for precision tacking and hand-stitching on frames or deep cushions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAccesses awkward angles without removing parts of the project.\u003c\/li\u003e\n  \u003cli\u003eMakes blind-stitching and binding easier and faster.\u003c\/li\u003e\n  \u003cli\u003eReduces hand strain when pulling through thick assemblies.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich needle length should I use: 3\", 4\", 5\" or 6\"?\u003c\/h3\u003e\n\u003cp\u003eChoose the shortest needle that reaches through the material without excess bend; short sizes give more control for detail work while longer lengths are better for spanning thicker projects. The set gives you flexibility to match needle length to task, from fine trim to deep cushion work.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e3\" — small trims, piping, delicate areas.\u003c\/li\u003e\n  \u003cli\u003e4\" — standard seams, mid-depth cushions.\u003c\/li\u003e\n  \u003cli\u003e5\" — thicker materials and layered assemblies.\u003c\/li\u003e\n  \u003cli\u003e6\" — deep frames, heavy webbing, long pulls.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should the needles be cared for to maximize life?\u003c\/h3\u003e\n\u003cp\u003eKeep the needles clean and dry, wipe them after use, and store them where tips are protected to prevent accidental dulling or bending. When working with adhesives or corrosive materials, clean residue promptly to avoid pitting the metal.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eWipe with a dry cloth after use to remove dust and fibres.\u003c\/li\u003e\n  \u003cli\u003eStore in a padded case or roll to protect tips and curves.\u003c\/li\u003e\n  \u003cli\u003eReplace needles if tips become rounded or if shafts bend.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? The C. S. Osborne K-4 curved 3-square point needle set is made for professional upholsterers, furniture restorers, sailmakers and advanced hobbyists who need reliable hand tools for heavy fabrics and complex assemblies. If you work on tufting, piping, webbing or any project that requires precise hand-stitching through dense materials, this set gives you the lengths and tip geometry to finish jobs cleanly and consistently. It’s a practical addition to any toolkit when durability, control and reach matter.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are these needles suitable for leather and heavy canvas?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes— the 3-square point and sturdy steel shaft are designed to penetrate heavy canvas and many leathers, though very thick leather may need pre-punching.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use these needles for sewing machines?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No—these curved hand needles are intended for manual upholstery work and are not compatible with sewing machines.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"C.S. Osborne","offers":[{"title":"Default Title","offer_id":55253587231057,"sku":"B004D32F7Q","price":30.98,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/c-s-osborne-k-4-needle-card-front-view.jpg?v=1791660910","url":"https:\/\/craftiche.co.uk\/products\/c-s-osborne-upholstery-curved-3-square-point-needle-set-3-4-5-6-precision-for-heavy-fabrics","provider":"Craftiche","version":"1.0","type":"link"}