The Faithfull Prestige Centre Finder Gauge is used to find the centre point of a square or cylindrical object With a measuring capacity of 90mm, this tool can be used on objects with a diameter or width of up to 180mm It features ruled markings in mm increments and can also be used for 45° and 90° mitre cut lines Manufactured from aluminium using computer numerical controlled (CNC) machines The black anodised finish offers enhanced corrosion protection and the laser engraved scales give outstanding measurement accuracy