{"product_id":"starrett-steel-combination-square-with-square-head-precise-150mm","title":"Starrett Steel Combination Square with Square Head - Precise 150mm","description":"\u003cp\u003eOur review of the Starrett 150mm Combination Square finds it best suited to tradespeople and precision-minded hobbyists who need a durable, accurate layout tool. The biggest reason to buy is its measured focus on repeatable accuracy: a hardened, photo-engraved blade with a 35 graduation type and crisp markings makes it easy to register and transfer dimensions. Built with a cast iron head, reversible lock bolt and included scriber and spirit level, this square is a practical everyday instrument for anyone who values long-term reliability and clear, legible measurements.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e35 Graduation Blade:\u003c\/strong\u003e The blade carries mm and 1\/2 mm divisions on both sides so measurements and fractional layout are fast and less error-prone.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardened Steel Blade:\u003c\/strong\u003e The hardened, photo-engraved steel resists wear and keeps the graduation marks readable through heavy use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCast Iron Square Head:\u003c\/strong\u003e The precision ground 90 and 45 faces on the cast iron head provide a stable reference for squaring and mitering tasks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReversible Lock Bolt:\u003c\/strong\u003e The reversible lock bolt secures the blade at measured positions and keeps the setting stable during transfer or marking.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Scriber and Spirit Level:\u003c\/strong\u003e The included scriber and spirit level expand functionality for scribing, depth gauging and quick leveling checks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile Layout Tool:\u003c\/strong\u003e It functions as a tri-square, miter, depth gauge, height gauge and level, reducing the need for multiple single-purpose tools.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis combination square is aimed at toolmakers, mechanics, carpenters and serious DIY users who need a small, accurate layout instrument for bench and site work. It suits anyone who values readable graduations and a tool that will withstand regular use in a workshop or on a jobsite.\u003c\/p\u003e\n\u003cp\u003eLess suitable for those who only need a cheap disposable square for occasional, rough work; budget shoppers looking for the lowest price may find this investment heavier on cost but pay off in longevity and accuracy.\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\u003eExceptional readability and accuracy from the photo-engraved \u003cstrong\u003e35 graduation\u003c\/strong\u003e blade.\u003c\/li\u003e\n\u003cli\u003eSolid build with a hardened steel blade and cast iron head that stand up to workshop conditions.\u003c\/li\u003e\n\u003cli\u003eMulti-function layout tool including scriber and spirit level reduces the need for extra gauges.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSome users may consider the price high compared with basic squares, making value perception mixed.\u003c\/li\u003e\n\u003cli\u003eThe cast iron head adds weight, which may be unnecessary for casual users who only need an ultra-light tool.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBlade length\u003c\/td\u003e\n\u003ctd\u003e150mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGraduation type\u003c\/td\u003e\n\u003ctd\u003e35 graduation (mm and 1\/2 mm both sides)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBlade material\u003c\/td\u003e\n\u003ctd\u003eHardened steel, photo-engraved\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead material\u003c\/td\u003e\n\u003ctd\u003eCast iron with black wrinkle finish\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead faces\u003c\/td\u003e\n\u003ctd\u003ePrecision ground 90 square face and 45 miter face\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded accessories\u003c\/td\u003e\n\u003ctd\u003eReversible lock bolt, scriber, spirit level\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Starrett 150mm Combination Square is a durable, accurate layout tool for professionals and serious hobbyists who value long-term reliability and clear graduations. While not the cheapest option, it delivers precise squareness, readable markings and multi-function utility that make it a solid value for those who will use it frequently.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs the blade readable in low light?\u003c\/strong\u003e\u003cbr\u003eThe photo-engraved graduations are crisp and legible, though like most metal blades they are easiest to read with adequate light.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan the square be used for depth and height gauging?\u003c\/strong\u003e\u003cbr\u003eYes, the square head and reversible lock bolt allow use as a depth gage and height gage in layout and measurement tasks.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the head replaceable if damaged?\u003c\/strong\u003e\u003cbr\u003eThe tool is built with a cast iron head for durability; replacement policies depend on the vendor, but the design is intended for long service life rather than frequent replacement.\u003c\/p\u003e","brand":"Starrett","offers":[{"title":"Default Title","offer_id":48235998544091,"sku":"B003XU78LI","price":131.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/51deGOHC8IL._SL1200.jpg?v=1770907534","url":"https:\/\/gearmusthave.com\/products\/starrett-steel-combination-square-with-square-head-precise-150mm","provider":"GearMustHave","version":"1.0","type":"link"}