3D combination tri square. New and improved, now includes low profile wing for easier bench work. Now with etched scale on blade in imperial & metric and includes angle indication on bevel gauge blade. Integral bevel gauge locking lever. Resettable 9Ó (225mm) Sheffield sprung steel main blade 50mm wide. Out performing traditional try squares the M3 Square is moved just once when marking round all four sides of a component saving time & reducing the margin for error. Reduced height wing to allow easier bench working on material over 16mm thick. Blade etched with metric and imperial scale. Angles etched on sliding bevel gauge Mark width and thickness over pre-moulded edges. Strike and replicate angles with integral lockable bevel gauge. Factory set to within a tolerance of 1/100th of 1 degree. Adjustable 9 inch Sheffield steel blade. Design Reg. No. 3005851.