Adaptable to lathes and grinders. They are installed by means of a counterplate, as with the normal jaw chucks.
They are of progressive magnetization to facilitate the centering of the piece.
The chucks of Ø 250 mm or greater are prepared to be able to make a hole in the center of the upper plate, to put a centering device.
Available in two different polar spacings Fi-Pol and Max-Pol