The friction clutch mechanism of these Dial Test Indicators provides a very effective shockproof system. Standard versions are equipped with contact points having a tungsten carbide ball of 2 mm diameter.On request contact points with ball diameters of 0.4 mm, 1 mm or 3 mm can be fitted. Also available are contact points with a 2 mm diameter ruby ball.
Standard equipment includes: 1 contact point with tungsten carbide ball 2 mm Ø, 1 stem 8 mm Ø and 1 spanner for changing the contact points.