{"product_id":"starrett-50136-steel-square-12-in-blade-7-in-base","title":"Starrett 50136 Steel Square 12 in Blade 7 in Base","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe STARRETT 50136 is a precision steel square designed for layout, inspection, and verification work where accuracy is critical. With a 12-inch blade length and a 7-inch base length, this tool delivers an accuracy of 0.0001 inches (0.0025 mm), making it suitable for demanding trade and shop applications. The square is manufactured from steel for durability and dimensional stability across typical workshop and field conditions. Machinists, pipefitters, fabricators, and layout technicians rely on tools at this tolerance level when checking perpendicularity on machined parts, structural assemblies, or precision fabrications.\u003c\/p\u003e\u003cp\u003eThis square fits into workflows that require reliable 90-degree reference checks on flat or vertical surfaces. It is appropriate for use in machine shops, fabrication shops, mechanical contracting environments, and inspection stations. The 12-inch blade gives adequate reach for medium-scale workpieces, while the 7-inch base provides stable footing on a reference surface. It does not feature a bevel edge, keeping the geometry straightforward for standard squareness verification tasks.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e12-inch blade length for medium-range layout and inspection reach\u003c\/li\u003e\n\u003cli\u003e7-inch base length for stable placement on reference surfaces\u003c\/li\u003e\n\u003cli\u003eAccuracy of 0.0001 inches (0.0025 mm) for high-precision squareness checking\u003c\/li\u003e\n\u003cli\u003eSteel construction for durability and dimensional stability\u003c\/li\u003e\n\u003cli\u003eNo bevel edge — standard geometry for direct 90-degree reference work\u003c\/li\u003e\n\u003cli\u003eComplies with California Proposition 65 standards\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style precision layout square suitable for general machining, fabrication, and mechanical inspection applications requiring a 12-inch blade steel square.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis tool is handled and used by machinists, pipefitters, and trade layout professionals — no power source or fasteners are required for use. Store and handle with care to protect the precision-ground edges from impact or corrosion, which can affect accuracy. Periodically verify the square against a known reference standard to confirm it remains within tolerance, especially after any drop or impact event.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlade Length\u003c\/strong\u003e: 12 inches (304.80 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase Length\u003c\/strong\u003e: 7 inches (177.8 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccuracy\u003c\/strong\u003e: 0.0001 inches (0.0025 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBevel Edge\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 4.188 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: California Proposition 65\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: 50136\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STARRETT","offers":[{"title":"Default Title","offer_id":51542303375666,"sku":"50136","price":1134.4,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/06641b5a6b0e109ee17f8150743976ef.jpg?v=1785897480","url":"https:\/\/voomisupply.com\/products\/starrett-50136-steel-square-12-in-blade-7-in-base","provider":"Voomi Supply","version":"1.0","type":"link"}