Dewalt dch brushless xr 3 mode hammers 2x 50ah li ion 18v dewalt dch274p2 gb this 18v brushless 3 mode quick chuck hammer from dewalt is supplied with a quick release sds plus tool holder and keyless chuck for easy switching between hammerrotary hammer and rotary only applications the hammer has a category leading high speed drilling performance at more than 90 holes 10 x 80mm per charge with a rotation stop mode for light chiselling in plaster tiles and render and impact stop mode f