The hitachi dh26px sds 3 mode hammer drill is approx 2 times more durable then the older model achieved by robust components incorporating the same mechanism as hitachis larger hammers powerful motors and optimised hammering achieves up to 30 faster drilling speed to improve work efficiency that makes it the best its class low vibration features hitachis user vibration protection uvp system this reduces the vibration from concrete drilling or chiseling by moving a counterweight in the opposite