Design: Hydraulic measuring stand with central clamping. One hand can remain free to set up the dial gauge. All joints are rigidly clamped by the central knob. Patented mechanics generate high pressure, allowing the handwheel to be tightened with minimal force. Oil hydraulics are secured against oil loss by double seals. Clamping force can be adjusted continuously. The joint arms can rotate 360° at the dial gauge holder and can be swiveled over 180°. The dial gauge holder is suitable for dial gauges with a shaft diameter of 8 mm or a prism. Magnetic base with a prismatic sole. Powerful permanent magnet. Rotary switch to turn the magnetic force on and off. The magnetic force acts through the flat back and the prismatic underside of the base. Additionally equipped with a sensitive hydraulic fine adjustment on the magnetic base for high-precision applications. Note: Hydraulic measuring stands can withstand high temperature fluctuations when unclamped. The oil requires some time to equalize the temperature. In the clamped state, a maximum temperature difference of 15 °C can be achieved without significant pressure fluctuations. These fluctuations can cause damage to the stand or the held objects. Delivery includes: Magnetic base No. 440865 Size 1.