Portable lathe device

A portable lathe device, intended primarily for returning of brake discs and comprising a portable driving device including a drive member and a clutch device connected with said drive member, said clutch device incorporating a centering device adapted to ascertain that the driving device and the brake disc shafts are aligned, said centering device comprising a rotatable disc for mounting to the brake disc, guiding means for aligning the rotatable disc with the brake disc and clamping means for locking the rotatable disc and the brake disc in aligned position, means for attaching said clutch device to a brake disc for rotation of the disc when still mounted on a wheel shaft and from which brake disc the vehicle wheel has been dismounted, a tool holder adjacent the driving device and provided with feed means, means for attaching said tool holder to the mounting points for a dismounted brake yoke, said tool holder including two individually adjustable lathe tools intended one for each side of the brake disc and said tool holder being moveable radially relative to the brake disc and a supporting arm rigidly connecting said last holder with said driving device to form an integral portable unit.