These powerful 1100W Makita Rotary Hammer drills have a very solid 11.4 joules of impact power which creates a sensationally impressive 1450-2900 Impacts Per Minute! They come with a mode change Lever located on top of the motor housing which allows the user to easily switch between continuous & intermittent applications. These rotary hammer drills will take up to a 40mm SDS drill bit maximum capacity plus a HUGE 105mm SDS core bit capacity. These drills also come with a very handy extra long 5 Metre electric cord.