4.9a, 3/8″, corded, drill with keyless chuck, powerful motor for improved performance, keyless chuck for fast & easy bit installation & removal, low decibel rating 79 db for quieter operation, variable speed 0-2,500 rpm for drilling in wide variety of materials, in-line handle design for better control, large trigger switch for comfortable operation, large recessed lock-on button, reversing switch is conveniently located, all-ball bearing construction for durability & longer tool life, includes: keyless chuck.