Combines the functions of a combination, try and framing square and can be used to make basic measurements and as a saw guide for 45° and 90° cuts It can be utilised as a protractor allowing the measurement of angles and pitches The adjustable protractor arm can be locked in place with the brass screw - a useful feature when making repetitive cuts This heavy-duty version is manufactured from aluminium. The black anodised finish offers enhanced corrosion protection and the laser engraved scales give outstanding measurement accuracy Faithfull Prestige 10 Year Manufacturers Guarantee