Maintain you chainsaw guide bars like the saw shop. The WoodlandPRO industrial bar rail grinder is designed to true up your guide bar rails quickly and efficiently. This will reduce wear on your saw chains and make your bars last much longer. The WoodlandPRO industrial bar rail grinder is compact, lightweight (approximately 16 lbs.) and takes up very little space. The table top footprint is only 14" so it can be mounted to any table or workbench. The motor is fan-cooled with plenty of horsepower to do the job right. Simply turn it on and slide the bar rails against the wheel. After a pass or two, your bars rails will be square. Comes complete with 1 wheel.