CRAFTSMAN CMED741 1/2-in 7-Amp Corded Hammer Drill (Tool Only)7.0 Amp Hammer Drill has a 1/2-in chuck to fit a variety of drill bits for different applications and provides the power needed to complete your heavy-duty tasks.COMPLETE TASKS WITH EASE: Max 3,100 RPMs and 52,700 BPMs to complete tasks with easeIMPROVED BIT RETENTION: Keyed chuck for improved bit retentionPROLONGED USAGE: Lock-on trigger allows for prolonged useCommon applications include hammer drilling in concrete and masonryIncludes (1) CMED741 Hammer Drill; (1) Chuck Key and Key Holder; (1) Side HandleClick here for more Hammer Drill on Our WebsiteSee reviews of CRAFTSMAN CMED741 Hammer Drill on Youtube