No mounting hole in rim for handwheel without handle. In aluminum they are supplied with handles made of plastic (type D) and made of steel (type F).DIN950-GG-100-B10-A Spoked Handwheel Handle shipped loose; mounting of handle is required..
The flat faced moveable ball (type B) allows the clamping or supporting of non-parallel surfaces.. GN606-M8-35-V Socket Head Cap Screw This allows full clamping of the flat faced ball at all times.