Running motor, a super-efficient hamor drill can get easier power into various types of drill bits Saving more power.zeroing any slowdown that occurs when turning th chuck is another practical effect Worth mentioning is that the extended lifespan and less maintenance actually add up to Money saved for users who choose a brushless motor on their hamor drill The reason for this is a more efficient energy use motor which allows you to keep working for longer periods without having to stop for battery changes and recharging The absence of brushes will also mean that when you use a brushless hammer drill (or any other type of tool for that matter), it produces less heat, reducing the chance for overheating after long periods "It's louder yet smoother, "a brand offered one builder. However people still say discharging weaselore This unparalleled precision and speed make it perfect for difficult tasks and high-torque applications, which means on any given day you may have to assemble floors-put together bear cases or tips even when machines are kilometers away (in the words of one user).