{"product_id":"starrett-56374-combination-square-set-24-inch-2-piece","title":"Starrett 56374 Combination Square Set 24 Inch 2 Piece","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe STARRETT 56374 is a 2-piece combination square set built for layout, inspection, and measurement work in the trades. The set includes a 24-inch steel blade and a cast iron square head graduated in the 4R style, providing four graduation increments: 1\/64 inch, 1\/32 inch, 1\/16 inch, and 1\/8 inch. This level of graduation detail supports precise scribe lines, depth checks, and 90-degree reference work across a wide range of fabrication, mechanical, and construction applications. The cast iron head resists wear and holds its reference edge under repeated jobsite use. At 1.88 pounds, the set balances rigidity with manageable weight for extended layout sessions.\u003c\/p\u003e\u003cp\u003eThe STARRETT 56374 is suited for use by machinists, pipefitters, ironworkers, millwrights, and general contractors who require accurate square and depth references during layout and fitting work. The 24-inch blade length accommodates larger workpieces and longer scribe runs compared to standard 12-inch sets. It is equally at home on a fabrication bench, in a machine shop, or on a commercial construction site where consistent squareness and repeatable measurements are required.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e24-inch steel blade with 4R graduation (1\/64, 1\/32, 1\/16, and 1\/8 inch increments)\u003c\/li\u003e\n\u003cli\u003eCast iron square head for durability and stable reference edge\u003c\/li\u003e\n\u003cli\u003e2-piece set includes blade and square head\u003c\/li\u003e\n\u003cli\u003e4R graduation style supports fine and coarse layout work from a single tool\u003c\/li\u003e\n\u003cli\u003e1.88-pound total weight balances rigidity with ease of handling\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard combination square set for general layout and inspection tasks across mechanical, fabrication, and construction trades.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eCombination squares require no installation but should be verified for calibration before critical layout work. Store the blade and head together to prevent nicks to the graduated edge. When used for layout scribing, ensure the workpiece surface is clean and free of burrs that could shift the head reference. No power tools or trade-specific codes apply to this hand tool.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Pieces\u003c\/strong\u003e: 2\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 inch, 1\/32 inch, 1\/16 inch, 1\/8 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Type\u003c\/strong\u003e: Square\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: 1.88 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: 56374\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STARRETT","offers":[{"title":"Default Title","offer_id":51543103766834,"sku":"56374","price":287.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/daa504e9eb0d7ff865ab340087b6671d.jpg?v=1785915539","url":"https:\/\/voomisupply.com\/products\/starrett-56374-combination-square-set-24-inch-2-piece","provider":"Voomi Supply","version":"1.0","type":"link"}