When it comes to sharpening Baumr-AG are the industry leaders and the 910 Series is the ultimate in precision sharpening. Featuring a genuine 230W Solid Copper Motor (copies of this product advertise 'copper core' where just the Rotor is copper Genuine Baumr-AG units carry a fully copper wound commercial motor which peaks at 350W and maintains Constant Speed ensuring no Hot Spotting along with unparalleled precision cuts. The 910 series does not simply maintain the sharpness of your saw chain either with fine adjustment angle pitch and depth of grind you can be rest assured that your correctly sharpened chain will not buck or kick-back and will provide hours of service as it were brand new! Do you demand the best? Whether you're a Pro or home handyman BUY NOW and take advantage of this limited offer which includes two precision Grinding Wheels and Baumr-AG's latest superior infinitely adjustable working vice.