DeWalts DW621 router is the first professional router to include a built-in, effective dust collection, not an expensive or clumsy add-on. In addition, the DeWalt DW621 has a powerful, 2 HP motor to handle the most challenging cuts. The electronic variable speed provides constant feedback so the motor doesnt slow down in heavy cuts. The rack-and-pinion height adjustment makes the depth adjustment quick and accurate. The DeWalt DW621 is equipped with long-length, precision-machined 1/4 and 1/2 collets and a wrench for changing bits.