{"product_id":"spi-30-224-0-combination-square-set-12-inch-2-piece","title":"Spi 30-224-0 Combination Square Set 12 Inch 2 Piece","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SPI 30-224-0 is a 2-piece combination square set built for layout, marking, and angle verification work across metal fabrication, mechanical installation, and general trade applications. The set includes a 12-inch hardened steel blade and a cast iron square head. The blade is graduated in 16R style, providing four graduation increments: 1\/32, 1\/64, 1\/50, and 1\/100 inch. Hardened steel construction on the blade resists wear during repeated scribing and measuring tasks, while the cast iron head delivers dimensional stability under shop conditions. This set is well suited to HVAC, plumbing, electrical, and general mechanical trades where accurate layout work is part of daily service.\u003c\/p\u003e\n\u003cp\u003eThe 30-224-0 combination square set is appropriate for residential and light commercial installation and fabrication environments. Typical applications include checking 90-degree and 45-degree angles on ductwork, conduit, pipe fittings, and structural framing during installation. The 12-inch blade length accommodates most standard layout tasks without requiring a longer rule. The square head can also function as a depth gauge and miter guide, making this a versatile reference tool for techs working across multiple trade disciplines.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e12-inch hardened steel blade resists wear during repeated layout and scribing use\u003c\/li\u003e\n  \u003cli\u003eCast iron square head provides stable 90-degree and 45-degree reference\u003c\/li\u003e\n  \u003cli\u003e16R graduation style with 1\/32, 1\/64, 1\/50, and 1\/100 inch increments on the blade\u003c\/li\u003e\n  \u003cli\u003e2-piece set includes blade and square head\u003c\/li\u003e\n  \u003cli\u003eBlade slides and locks along the head for depth and step measurements\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 standard layout and measurement tasks in trade and fabrication settings.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eCombination squares are a hand measurement and layout tool requiring no power source or mechanical installation. Store the set with the blade protected to prevent nicking the graduation markings. Periodically verify the squareness of the head against a known reference surface to confirm accuracy has not shifted due to impact or wear. Keep the blade locking mechanism clean and free of debris to maintain secure positioning during use.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\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: 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\/50, and 1\/100 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: Hardened Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Material\u003c\/strong\u003e: Cast Iron\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Dimensions\u003c\/strong\u003e: 13 inches (L) x 6 inches (W) x 0.5 inches (H)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 2.5 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: SPI\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 30-224-0\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51691539038514,"sku":"30-224-0","price":118.77,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/2d3fef294e55488643fd23026a38e51b.jpg?v=1788286735","url":"https:\/\/voomisupply.com\/products\/spi-30-224-0-combination-square-set-12-inch-2-piece","provider":"Voomi Supply","version":"1.0","type":"link"}