The tool is very useful and can even cut in both directions on a smooth running roller bearings. The cutting head can even be raised or lowered from any position on the bar. It comes with an adjustable clamp and lifts automatically when the cutting head reaches any end. The baseboard rules in inches and metric. The average rating for this product is five stars and has many reviews. Madison Art Shop constantly searches for the lowest price and if a lower price is found we will march it. There are assorted parts and accessories that can be purchased for the Trim Series and Electric Trim Series Trimmers.