The dewalt dch334x2 brushless sds plus hammer is supplied with a quick release sds plus toolholder and keyless chuck for easy switching between hammerrotary hammer and rotary only applications has a brushless motor for extreme runtime and reduced maintenance compact lightweight and ergonomic design for improved comfort and support during extended operating periods with rotation stop mode for light chiselling in plaster tiles and render and impact stop mode for rotary only drilling in wood and me