It is ideal to turn circular workpieces on the Neostar circular permanent chuck. The advantage consists in the possibility to machine the front face, inner and outer diameter of the part in a single operation. This magnet has a clamping force of up to 140 N/cm2 and a regrinding limit of 5 mm. We produce it in several dimensions, on request we can also finish a central drilling, a top plate with T-slots or a set of pole pieces.