The dewalt dch273 brushless xr sds 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 for rotary only drilling in wood and metal the brushless motor and high capacity xr 18 volt 50ah lithium ion battery platform provide extreme runtime and reduced maintenance it is fitted with an electronic clutch for consistently high torque and improved durabilit