The EDCO 18-inch walk-behind saw features a belt system that allows the use of different size blades without changing any pulleys or belts. Avoiding this maintenance reduces turn-around times and quickly prepares the DS18 for rental. Because all belts remain the same, simply remove and then retighten the arbor shaft’s backing plate and corresponding hardware when changing the blade. Arbor wrenches are included. The DS18 is compatible with 12- to 18-inch diamond blades and has a maximum cutting depth of 6.75 inches. www.edcoinc.com/