Features: Including device for thinning, that means better centering of the drill bit on the workpiece and reduction of the required feeding force 30 pcs. ER collets are part of the standard equipment, also suitable for clamping of intermediate sizes Additional station for relief-grinding of the cutting face (relief angle) Adjustable point angle of 90° to 135° Rotor features precise ball bearings to guarantee smooth operation Quick and precise working results through the easy handling Heavy machine construction and rubber feet minimize vibrations