Dewalt DWD450 1/2" Vsr Stud & Joist Drill With ClutchDewalt DWD450 Features 1 2" VSR Stud and Joist Drill with Clutch Mechanical clutch in low gear to prevent bit lock up and provides increased gear life 11 amp, DEWALT built motor for increased power and performance in high torque applications 2 variable speed ranges (0 330 0 1300 rpm) to match appropriate speed to the application Metal gear housing for jobsite durability and increased reliability Adjustable front handle and 2 position side handle