The BlueSpot 150mm (6") Aluminium Speed Square is specifically designed for quickly and efficiently marking your workpiece. Due to the design of the square, you can quickly mark 90° and 45° lines on your work prior to performing cuts. The speed square also features a pivot point for measuring angles from 1° to 90°. As well as this you have common roof batten lengths and hip-val for working on roofing projects. Manufactured from aluminiumFor quickly and efficiently marking your work pieceFeatures common, hip-val, degrees and 6" markings.