{"product_id":"starrett-56405-combination-square-set-24-in-3-piece","title":"Starrett 56405 Combination Square Set 24 in 3 Piece","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe STARRETT 56405 is a 3-piece combination square set built around a 24-inch steel blade. The set includes both a square head and a forged steel center square head, giving technicians and tradespeople the tools to check squareness, find center lines, and measure angles in a single kit. The blade features 4R graduation, marked in 1\/64, 1\/32, 1\/16, and 1\/8 inch increments, supporting precise layout work across a range of trades. The forged steel center head adds durability for demanding job site conditions. Total package weight is 2.125 pounds.\u003c\/p\u003e\n\u003cp\u003eThe STARRETT 56405 is suited for layout and inspection tasks in mechanical, HVAC, plumbing, and general fabrication work. It handles common tasks such as scribing lines, checking right angles, and locating center points on round stock. The 24-inch blade length supports work on larger panels, sheet metal, ductwork, and structural components. This set is a practical choice for service technicians and installers who need a reliable multi-function layout tool on the job.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e3-piece set includes a 24-inch steel blade, square head, and forged steel center square head\u003c\/li\u003e\n  \u003cli\u003e4R graduation: 1\/64, 1\/32, 1\/16, and 1\/8 inch increments on a single blade\u003c\/li\u003e\n  \u003cli\u003eForged steel center square head for added strength and wear resistance\u003c\/li\u003e\n  \u003cli\u003e24-inch blade length accommodates layout work on larger workpieces\u003c\/li\u003e\n  \u003cli\u003eDual-head configuration enables squareness checks and center-finding without switching tools\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a general-purpose combination square set suitable for layout and measurement tasks across mechanical, fabrication, and trade service applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eNo power source or shutoff is required for layout tools. Store the blade in a dry location to prevent corrosion on the steel surfaces. When scribing critical reference lines, verify the head is seated firmly against the workpiece edge before marking. Handle the forged steel heads carefully to avoid damage to precision-ground mating surfaces.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Pieces\u003c\/strong\u003e: 3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBlade Length\u003c\/strong\u003e: 24 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGraduation Style\u003c\/strong\u003e: 4R\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGraduation Increments\u003c\/strong\u003e: 1\/64, 1\/32, 1\/16, and 1\/8 inches\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: Forged Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Types Included\u003c\/strong\u003e: Square Head, Center Square Head\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 2.125 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: 56405\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STARRETT","offers":[{"title":"Default Title","offer_id":51540521287986,"sku":"56405","price":412.57,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/8e14436bb880db352085dc44892e3f15.jpg?v=1785857359","url":"https:\/\/voomisupply.com\/products\/starrett-56405-combination-square-set-24-in-3-piece","provider":"Voomi Supply","version":"1.0","type":"link"}