Light and handy machine with the small diameter of the body, however blocking the screw housing and the plastic hub are not worthy of a designation "professional". Chinese manufacturing but it was already said in a previous review and so I bought it knowingly from this point of view, against the light of the proposed pictures online it is almost impossible to get an idea on the two first points and the description does not specify this, the Bosch gold machinery general public views in stores all have a very quick lock system ... My rating is minus accordingly.