The 300mm Draper Combination Square is the larger, more substantial option in the range, perfect for full-size construction projects, large-scale carpentry, and metalwork applications where extended reach and maximum accuracy are required. Constructed from matt black metal stock with polished faces, this 300mm square features a brass adjusting screw for reliable blade positioning, along with an integrated spirit level and scriber. The high-quality stainless steel blade offers superior durability and corrosion resistance compared to aluminium alternatives. Graduated on both sides, the blade provides comprehensive measurement options: centimetre metric graduations with 1mm divisions on both sides, whilst the 1" imperial graduations offer 1/16" divisions on one side and finer 1/32" divisions on the reverse for ultra-precise marking. Features and Benefits:Extended 300mm length ideal for larger construction and metalwork projectsHigh-quality stainless steel blade for superior durabili