All ok, many thanks! The magnet is really strong.
What a pice of garbagge! The magnetic base is fine but the rest ist wobbling arround like a jelly! Lots of play between the arms and the balljoint holders even when thightend very well. And the dial indicator holder is not able to hold the brand name mitutoyo indicator! The 8mm bore is 8.4mm and the dovetales don't work as well. And additinally, within the indicator lowering rig at the head is a lot of wobbling as well! Keep off of that product and buy a brand name used one instead!