As powerful as corded up to 160 drilled holes 6 x 40 mm in c3037 concrete with one battery charge ideal for indoor use pneumatic hammer mechanism optimised for drilling holes of 4 12 mm in concrete max 18 mminnovative coolpack batteries ensure optimum heat dissipation and therefore increase lifetime by up to 100 cf li ion batteries without coolpack more than 50 longer battery runtime due to new 20 ah batteries cf 36 v13 ah no memory effect the battery can be charged re