6.0 amp motor provides plenty of power for most needs in either rotary or rotary hammer modes. Variable speed (0-1000 RPM; 0-16,000 BPM) for fast results in a variety of materials. 1/2 in. single sleeve keyless chuck. Trigger switch with lock on button. Drill/hammer capability. Spindle lock for fast bit changes. Ball bearings for smooth, precise operation. Live tool indicator. Auxiliary handle with adjustable depth stop rod. Contoured center grip handle with overmold.