Designed for a variety of smaller applications STOW's CDM-1H hand-held core drill can be used for electrical and plumbing jobs that require drilling through walls and floors. The CDM-1H can be used in wet drilling applications up to three inches in diameter or with STOW's Cobra dry drilling bit up to five inches, which is made for drilling reinforced concrete. This single-speed, 11-amp, 115-volt drill operates at 0-1,800 rpm and has a three-position handgrip and an internal water feed. It weighs nine pounds and comes with an adjustable shoulder rest, and a carrying case.