Grinding capacity: PP - 100(5dia - 100dia mm straight & shank & taper shank). The kinds of grinding tool include: drills, step drills, taps, counter sink, round bars, lips of end mills, etc. Adopt the precise 6" 6pawl chuck, clipping one time. It can grind the blade of drills and do the paring of drills abdomen. The angle of drills and the length of the blade are the same after grinding. It can keep the drill center without off center. The main spindle have the grinding wheel 2pcs. The blade and the center of drills can be grinded one time. It can save the time for changing the grinding wheel. To clip directly the repairer of grinding wheel in the attachment and it can do the wheel in the attachment and it can do the repair of grinding wheel. The motor can be removed 160mm up & down, it can increase the control of the machinery.