The 12V CXT™ Lithium-Ion Brushless 5/8” Rotary Hammer Kit (RH01R1) is a compact concrete drilling solution powered by an efficient Makita BL™ Brushless Motor for up to 50% longer run time, increased power and speed, and longer tool life. The RH01Z delivers 0-680 RPM, 4,800 BPM, and 1.1 Joules of impact energy. Ease-of-use and efficiency features include 2-mode operation (rotation only, hammering with rotation), a variable speed trigger, and a vibration-absorbing handle that moves independently of the motor and hammer mechanism for increased operator comfort. For longer run time, 12V max CXT™ cordless tools are also compatible with 12V max CXT™ Lithium-Ion 4.0Ah batteries (BL1041B, sold separately). 12V max CXT™ Lithium-Ion batteries are engineered with a Battery Protection Circuit that protects against overloading, over-discharging and over-heating. It’s part of the expanding 12V max CXT™ series, combining performance with superior ergonomics in a compact size.