The Aristo precision compass with a round head made of solid metal is equipped with an extension rod and a universal adapter, and has been a favorite among technicians as a professional precision tool worldwide for decades. The fine spindle, which allows for measurement adjustments via the central wheel, ensures the highest accuracy. Even when retracting the compass, the set measurement remains unchanged. Each of the two legs is equipped with a joint. One leg allows for the attachment of inserts with a diameter of 4.0 mm, for example, for an extension rod or for adapters to draw with pigment pens or ink fillers. Non-slip clamps for the needle and the lead are standard with Aristo. The Aristo precision compass is delivered together with an extension rod for circles up to a maximum diameter of 500 mm, a universal adapter, and a case containing 2 replacement leads in a clear pouch.