The Sealey Combination Square is a precision measuring tool designed for accurate marking, measuring and checking angles in woodworking and general construction tasks. This versatile square features a machined stainless steel blade with permanently etched metric and imperial graduations, ensuring clear, long-lasting measurements throughout its working life. Built with a robust zinc alloy head, this combination square offers excellent durability for daily workshop use. The head incorporates an integrated scriber for marking materials, a spirit level vial for checking horizontal and vertical alignments, and a brass locking screw that securely holds the blade at any position along its 300mm length. The adjustable design allows tradespeople to quickly set and lock measurements for repetitive marking operations. Ideal for carpenters, joiners and general woodworking professionals, this tool excels at checking squareness, marking cut lines, and verifying angles on timber and sheet materials.