{"product_id":"starrett-50043-combination-square-set-12in-4-piece","title":"Starrett 50043 Combination Square Set 12in 4 Piece","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe STARRETT 50043 is a 4-piece combination square set built for layout, inspection, and measurement work in the field or shop. The set includes a 12-inch hardened steel blade graduated in 16R style, with markings at 1\/32, 1\/64, 1\/100, and 1\/50 inch increments for versatile readout options. The set ships with three head types: a square head, a center head, and a protractor head, all cast from iron for rigidity and long-term dimensional stability. Licensed tradespeople, machinists, pipefitters, and general contractors rely on combination square sets like this one for scribing, angle-setting, and depth measurement across a wide range of installation and fabrication tasks.\u003c\/p\u003e\n\u003cp\u003eThis combination square set is appropriate for general trade use including HVAC, plumbing, electrical rough-in, and light fabrication work. The 12-inch blade length suits most standard layout tasks on framing, pipe runs, conduit bends, and sheet metal. The protractor head extends utility to angle transfer and bevel work, while the center head is useful for locating the center of round stock. The 16R graduation style is a widely recognized standard in the trades, making this set compatible with common measurement workflows on job sites and in service shops.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e12-inch steel blade with 16R graduation in 1\/32, 1\/64, 1\/100, and 1\/50 inch increments\u003c\/li\u003e\n  \u003cli\u003eThree interchangeable head types: square head, center head, and protractor head\u003c\/li\u003e\n  \u003cli\u003eCast iron heads provide rigidity and resistance to wear under repeated use\u003c\/li\u003e\n  \u003cli\u003eHardened steel blade resists flex and maintains accuracy across its length\u003c\/li\u003e\n  \u003cli\u003e4-piece set covers angle transfer, center-finding, and square layout in one kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a general-purpose OEM-style combination square set suitable for layout and inspection applications across HVAC, plumbing, electrical, and light fabrication trades.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eCombination square sets require no installation and are a hand tool used by licensed tradespeople for layout and measurement tasks. Keep the blade and head locking mechanism free of debris to maintain accurate blade positioning during use. Inspect the square head for flatness periodically, as impact damage to cast iron heads can affect measurement accuracy. Store the set in a dry environment to prevent corrosion on the steel blade.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Pieces\u003c\/strong\u003e: 4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBlade Length\u003c\/strong\u003e: 12 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGraduation Style\u003c\/strong\u003e: 16R\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGraduation Increments\u003c\/strong\u003e: 1\/32, 1\/64, 1\/100, and 1\/50 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Types Included\u003c\/strong\u003e: Square, Center, Protractor\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBlade Material\u003c\/strong\u003e: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Material\u003c\/strong\u003e: Cast Iron\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 2.313 pounds\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: STARRETT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 50043\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STARRETT","offers":[{"title":"Default Title","offer_id":51540616118578,"sku":"50043","price":406.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/fe01c7854796c9888f86c128228ffd35.jpg?v=1785860154","url":"https:\/\/voomisupply.com\/products\/starrett-50043-combination-square-set-12in-4-piece","provider":"Voomi Supply","version":"1.0","type":"link"}