{"product_id":"grobet-31-643-swiss-pattern-needle-file-three-square-cut-6","title":"Grobet 31.643 Swiss-pattern Needle File Three Square Cut 6","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe GROBET 31.643 is a Swiss-pattern needle file in a three-square (triangular) profile, cut 6, designed for ultra-fine finishing and precision deburring in confined or angled areas. With an overall length of 6.25 inches and a 3-inch cutting length, this file delivers controlled material removal on metal surfaces where coarser files leave too much stock. Cut 6 is the finest grade in the Swiss-pattern numbering system, making this tool the right choice for watchmakers, toolmakers, machinists, and trade professionals requiring tight tolerances and smooth surface finishes on intricate workpieces.\u003c\/p\u003e\n\u003cp\u003eThis three-square needle file is suited for work in V-grooves, internal angles, and narrow slots where a flat or round file cannot reach. Its triangular cross-section allows three cutting faces to contact workpiece surfaces simultaneously, making it effective on ferrous and non-ferrous metals, hardened steel, and similar materials. The tang-style handle end accommodates a standard needle file handle, though it ships without one. Typical applications include die and mold work, instrument repair, precision fabrication, and fine deburring tasks in shop or field settings.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eThree-square (triangular) profile provides three cutting faces for work in V-grooves and internal angles\u003c\/li\u003e\n  \u003cli\u003eCut 6 Swiss-pattern grade delivers ultra-fine stock removal and smooth surface finishes\u003c\/li\u003e\n  \u003cli\u003e3-inch length of cut concentrates abrasive surface in the working zone of the file\u003c\/li\u003e\n  \u003cli\u003e6.25-inch overall length fits standard needle file handles (sold separately)\u003c\/li\u003e\n  \u003cli\u003eTang-style end for secure handle mounting during precision work\u003c\/li\u003e\n  \u003cli\u003eNeedle-class precision suitable for toolmaking, instrument repair, and die work\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style precision hand file for use with standard needle file handles compatible with tang-style needle files.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis file is a hand tool and requires no power source or mechanical installation. Secure the tang into a properly sized needle file handle before use to prevent injury from the exposed tang. Keep the file surface clean and free of embedded chips by using a file card or brush periodically during use. Do not use needle files on surfaces that exceed the file's hardness rating, as this can fracture the teeth and render the file unusable.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFile Type\u003c\/strong\u003e: Three Square (Triangular)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCut Grade\u003c\/strong\u003e: 6 (Swiss-Pattern, Needle Precision)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 6.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHandle Style\u003c\/strong\u003e: Tang (handle not included)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePattern\u003c\/strong\u003e: Swiss-Pattern\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: GROBET\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 31.643\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GROBET USA","offers":[{"title":"Default Title","offer_id":67909889655090,"sku":"31.643","price":33.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/b9244874d4efa7c4dbdb7a0eefbe7d17.jpg?v=1791193651","url":"https:\/\/voomisupply.com\/products\/grobet-31-643-swiss-pattern-needle-file-three-square-cut-6","provider":"Voomi Supply","version":"1.0","type":"link"}