Hitachi dh28px sds plus rotary hammer has a new high durability hammering mechanism that has approximately twice the durability of previous models delivering up to 30 faster drilling speed and high impact energy of 34 joules has a low vibration design with double moulded side handle and 3 mode action with large change lever angle adjustment function for easy alignment of chisel blades and one push action for easy bit mounting comes with a depth gauge side handle and carrying case specification i