Dewalt sds max combi hammers 567kg 11001250w 110230v dewalt d25501k lx this 230v max combi hammer from dewalt is ideal for the professional tradesman as it can be used for drilling anchor fixing and through holes in concrete and masonry from oslash 12 40mm and is capable of core drilling up to 90mm the chain drive improves durability and increases efficiency together with an oil filled gearbox to ensure total component lubrication and superior heat dissipation the ergonomic compac