The Bosch GBH18V-28CF Professional SDS-Plus hammer drill offers impressive corded performance with cordless freedom, delivering up to 3.3J of impact energy for an outstanding 28mm drilling diameter capacity in concrete. It has Vibration Control and Kickback Control for less impact on your hands and arms, plus it comes with a GDE18V-16 click-on dust extractor for virtually dust-free drilling, which significantly reduces your risk of breathing in concrete dust.