The Bosch GBH 12-52 D SDS Max Rotary Hammer\'s incredibly powerful motor enables the delivery of 19 J of impact energy The GBH 12-52 D Professional is the most heavy-duty tool in Bosch\'s SDS max corded rotary hammer range. It features a high-end motor producing the ultimate performance in SDS max applications. The rotary hammer\'s incredibly powerful motor enables the delivery of 19 J of impact energy, perfect for tough chiselling. It is also designed for high durability, featuring extremely robust metal components. This tool is intended for drilling up to 52 mm in diameter and heavy chiselling work in concrete and stone. It is compatible with various dust attachments. The GBH 12-52 D Professional features include Constant Speed, Restart Protection, Rotation Control Clutch, and Speed Selection. Features: High-end motor for ultimate performance in SDS max tasks Powerful motor enables the delivery of 19 J of impact energy for heavy chiselling Highly durable due to extremely robust metal components Comes With: Auxiliary handle Grease tube 30ml Machine cloth Carrying case Specification: Rated input power: 1,700 W Impact energy: 19 J Impact rate at rated speed: 1,750 - 2,150 bpm Rated speed: 0 - 220 rpm Tool dimensions (width): 120 mm Tool dimensions (length): 600 mm Tool dimensions (height): 312 mm Tool holder: SDS max Drilling range: Drilling dia. concrete, hammer drill bits: 12 - 52 mm Opt. appl. range concrete, hammer drill bits: 30 - 50 mm Drilling dia. concrete, breakthrough drill bits: 80 mm Drilling diameter in concrete with core cutters: 150 mm Total vibration values (Hammer drilling in concrete) Vibration emission value ah: 20 m/s² Uncertainty K: 1.5 m/s² Total vibration values (Chiselling) Vibration emission value ah: 15 m/s² Uncertainty K: 1.5 m/s² Weight: 11.5 kg