{"product_id":"starrett-steel-combination-square-12in-blade-precision-layout-tool","title":"Starrett Steel Combination Square 12in Blade - Precision Layout Tool","description":"\u003cp\u003eIn this review of the Starrett Steel Combination Square with a 12in blade, the bottom line is simple: if precision layout and long-term durability matter, this is a tool that will repay its cost. The reviewer found it best suited to tradespeople and serious DIYers who need a reliable reference for squaring, depth and height gauging, and centring tasks. The standout reason to buy is the combination of a hardened steel, photo-engraved blade with a cast iron head that keeps measurements consistent and legible over years of use.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e4R Graduation:\u003c\/strong\u003e The photo-engraved 4R scale presents 8ths, 16ths, quick-reading 32nds and 64ths for more accurate, repeatable measurements on wood and metal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardened Steel Blade:\u003c\/strong\u003e The hardened and tempered satin chrome blade resists wear and maintains crisp markings even after frequent use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCast Iron Heads:\u003c\/strong\u003e The square and center heads are cast iron, offering sturdier, more stable squareness than plastic or die-cast alternatives.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReversible Lock Bolt:\u003c\/strong\u003e An adjustable, reversible lock bolt secures the head on the blade for consistent setup during layout and transfer tasks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile Uses:\u003c\/strong\u003e The tool supports scribing right angles, parallel lines, tri-squaring, mitering, depth and height gauging and centring work for multiple trades.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt to Last:\u003c\/strong\u003e The overall construction is intended for long service life, making it a durable shop reference tool.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe Starrett 12in combination square is aimed at toolmakers, mechanics, carpenters and committed DIYers who need a dependable, accurate layout instrument that will hold squareness and legibility across years of shop use. Its hardened blade and cast iron heads make it a good fit where repeatable, precise measuring is required.\u003c\/p\u003e\n\u003cp\u003eThose who want a very inexpensive disposable square for occasional hobby tasks or who strictly need metric graduations only may want to look elsewhere; this model is optimized for imperial 4R graduations and long-term performance rather than minimal upfront cost.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigh readability from photo-engraved 4R graduations that include quick-reading 32nds and 64ths.\u003c\/li\u003e\n\u003cli\u003eRobust construction with a hardened steel blade and cast iron heads for lasting accuracy.\u003c\/li\u003e\n\u003cli\u003eSmooth sliding and secure locking provide consistent setups for repetitive layout work.\u003c\/li\u003e\n\u003cli\u003eMulti-purpose heads make it useful for centring, squaring, depth gauging and mitering tasks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigher-quality materials and construction make it a pricier option compared with basic hobby squares.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eC11H-12-4R with Square and Center Head\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBlade Length\u003c\/td\u003e\n\u003ctd\u003e12in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGraduation Type\u003c\/td\u003e\n\u003ctd\u003e4R - 8ths, 16ths, quick-reading 32nds and 64ths\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBlade Material\u003c\/td\u003e\n\u003ctd\u003eHardened and tempered steel, satin chrome finish\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Material\u003c\/td\u003e\n\u003ctd\u003eCast iron (square head and center head)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLock\u003c\/td\u003e\n\u003ctd\u003eReversible lock bolt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Starrett 12in combination square is recommended for professionals and serious hobbyists who value precision and durable construction; its hardened blade, clear 4R graduations and cast iron heads deliver reliable squareness and longevity that justify the higher upfront cost.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this model include both square and center heads?\u003c\/strong\u003e\u003cbr\u003eYes, the package includes a square head and a center head mounted on the adjustable rule.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre the graduations permanent and easy to read?\u003c\/strong\u003e\u003cbr\u003eYes, the rule is photo-engraved on a satin chrome hardened steel blade, which keeps the markings crisp and durable.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the head material metal or plastic?\u003c\/strong\u003e\u003cbr\u003eThe heads are cast iron, not plastic or die-cast, which contributes to better stability and longevity.\u003c\/p\u003e","brand":"Starrett","offers":[{"title":"Default Title","offer_id":48225378304219,"sku":"B000KUCKDA","price":168.11,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/51yiuEzT88L._SL1250.jpg?v=1770756060","url":"https:\/\/gearmusthave.com\/products\/starrett-steel-combination-square-12in-blade-precision-layout-tool","provider":"GearMustHave","version":"1.0","type":"link"}