Proxxon Professional Rotary Tool IBS/E with 34 Bits / Cutters and Storage Case (38 481)Usable for extended periods when grinding, polishing, cleaning, cutting and engraving. Ideal for mechanics, model builders, jewelers, opticians, artists and electronic enthusiasts. Ball bearing spindle of ground steel with lock button for rapid cutter changing. Streamlined head of die cast aluminum for exact bearing seats and optimal stability. Quiet, powerful 100W motor with full wave electronics for speeds between 5,000 and 20,000rpm. Quality