DEWALT DWD450 VSR Stud and Joist Drill with Clutch, 1/2-Inch 11.0 Amp high performance DEWALT built motor for increased power and performance Mechanical clutch prevents bit lock-up in low gear and provides increased gear life 2 variable speed ranges: 0-330 / 0-1300 RPM to match speed to the application Metal gear housing for jobsite durability Adjustable front handle and 2-position side handle