The 478 three star double ended scriber Features: a straight point and a curved hook point. The curved point has not been heat treated to prevent scratching if used as a hook pull. The straight point has been heat treated, and the points are mounted in a knurled, finger-grip handle. The overall length is 7.75.Specs amp; FeaturesDouble EndedQuality: , Surface Resistivity : Conductive, Shape: Straighthook, Material: SS, OAL: 7.5 (187.5mm), Tip Width: .015 (.38mm), Tip Height: .010 (.25mm)