This is an updated and improved version the carpenter’s mitre square. The traditional blued carbon steel blade is now polished 1.5mm thick stainless steel. Bluing gave some corrosion protection but could not eliminate it. Four brass rivets permanently fix the blade to the hardwood stock. The fixing ensures the mitre square will remain accurate throughout its working life. The end of the stock has brass inserts on each side for added protection. Use this tool in the construction of mirror and picture frames and when installing mouldings. Size: 280mm (11").