DEWALT DW222 3/8-Inch 0-1200 rpm VSR Drill w/Keyless Chuck 6.7 amp Helical-cut steel, heat-treated steel gears for long life and durability Single-sleeve keyless chuck with spindle lock provides greater bit retention and tool-free convenience Two-finger, rubber trigger for increased comfort Large, 2-finger variable speed trigger control Heat-treated gears provide long-lasting durability