Designed for general purpose and drywall cutting, the DeWalt DC550KA Heavy Duty 18-volt Ni-Cad Cordless Spiral Saw comes with 1/8-inch and 1/4-inch collets. This saw features tool-free bit changes for fast and easy bit changing without a wrench, and its 18-volt, 26,000 RPM motor provides plenty of cutting power for industrial-size jobs. Other features include a dust-sealed switch for durability and long switch life and an adjustable guide. This saw comes with a 1-hour battery charger, two 18-volt XRP battery packs, one general purpose bit, one drywall cutting bit, 1/4- and 1/8-inch collets, and a heavy-duty kit box.