{"product_id":"starrett-51243-surface-gage-2-spindle-hardened-steel","title":"Starrett 51243 Surface Gage 2 Spindle Hardened Steel","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe STARRETT 51243 is a surface gage designed for precision layout, inspection, and scribe-line work on flat reference surfaces. It features two spindles with spindle lengths of 12 inches and 18 inches, giving the technician flexibility to reach workpieces at varying heights without repositioning the base. The base measures 3.5 inches long by 3.1875 inches wide and is constructed from hardened steel for rigidity and wear resistance. At 5.313 pounds, the unit provides stable footing on a surface plate or machine table. Machinists, tool-and-die makers, and precision layout techs are the primary users.\u003c\/p\u003e\u003cp\u003eThe 51243 is suited for machine shop layout operations, quality control inspection stations, and toolroom applications. It performs well on granite surface plates, cast-iron surface plates, and precision-ground machine tables. The dual-spindle configuration allows simultaneous use of a scribe and a dial indicator holder, or two scribes set to different heights, reducing setup changes during complex layout work. It fits into general metalworking, maintenance and repair operations, and precision manufacturing environments.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTwo spindles accommodate 12-inch and 18-inch reach for versatile height adjustment\u003c\/li\u003e\n\u003cli\u003eHardened steel base resists wear and maintains flatness over repeated use\u003c\/li\u003e\n\u003cli\u003eBase footprint of 3.5 inches long by 3.1875 inches wide for stable surface contact\u003c\/li\u003e\n\u003cli\u003e5.313-pound mass provides low center of gravity and reduces tip-over risk during scribing\u003c\/li\u003e\n\u003cli\u003eDual-spindle design supports simultaneous scribe and indicator holder setups\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement and standard surface gage suitable for general precision layout and inspection use on flat reference surfaces in toolroom and machine shop environments.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eSurface gages require no permanent installation. Place the unit on a clean, flat reference surface such as a certified granite or cast-iron surface plate before use. Ensure the base and surface plate are free of chips, burrs, and coolant residue to maintain contact accuracy. Spindle clamp screws should be snugged firmly before scribing or indicating to prevent slippage during traversal.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Spindles\u003c\/strong\u003e: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpindle Lengths\u003c\/strong\u003e: 12 inches and 18 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase Length\u003c\/strong\u003e: 3.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase Width\u003c\/strong\u003e: 3.1875 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase Material\u003c\/strong\u003e: Hardened Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 5.313 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: STARRETT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 51243\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STARRETT","offers":[{"title":"Default Title","offer_id":51539163349298,"sku":"51243","price":474.07,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/4033f62358dd94b35dc009e1e78784a4.jpg?v=1785835742","url":"https:\/\/voomisupply.com\/products\/starrett-51243-surface-gage-2-spindle-hardened-steel","provider":"Voomi Supply","version":"1.0","type":"link"}