This Dewalt SDS 18V contains features such as a powerful brushless motor, rotation stop mode and lightweight design The Dewalt DCH273 cordless SDS hammer drill gives unbeatable runtime. The brushless motor helps this machine drill 63% more holes than the DCH253. This 3 mode hammer drill has class-leading vibration control at 6.6m/s due to the floating gearbox which is mounted on 4 springs. The chuck and gearbox move backwards and forwards together absorbing the impact which would normally end up transferred to the user. The combination of Dewalt battery (not included) and brushless motor means more power and less charging. Features: - Category-leading high-speed drilling performance at more than 90 holes (10mm Ø x 80mm) per charge - Rotation stop mode for light chiselling in.