Bosch’s GBH 2-21 Professional rotary hammer with SDS technology is the ideal compact entry level solution for powerful hammer drilling This drills powerful 720 W motor and 20 J of impact energy make for effective hammer drilling in concrete of up to 21 mm in diameter Key Features Powerful 720 W motor and 20 J of impact energy for effective hammer drilling in concrete up to 21mm diameter Compact rotary hammer offers professional Bosch hammer drilling performance within reach Three-mode rotary hammer for hammer drilling drilling and chiselling ensures versatility and convincing results Perfect for use in concrete stone and masonry Compatible with the following dust attachments for external vacuum cleaners GDE 16 Plus GDE 68 and GDE 162 Specification Voltage 110v 240v Part No 06112A6061 06112A6071 Rated Input Power 110 W Impact Energy 2 J Impact Rate At Rated Speed 0 - 4800 bpm Tool Dimensions 334 x 88 x 205mm Tool Holder SDS Plus Drilling Diameter Concrete - Hammer Drill Bits 4 - 21mm Opt Appl Concrete - Hammer Drill Bits 4 - 10mm Max Drilling Diameter In Metal 13mm Max Drilling Diameter In Wood 30mm Max Drilling Diameter In Concrete 21mm Weight 23 kg NoiseVibration Hammer Drilling In Concrete Vibration Emission Value Ah 147 ms² Uncertainty K 15 ms² Chiselling Vibration Emission Value Ah 119 ms² Uncertainty K 15 ms² Whats Inlcuded - SDS Kit Set Only 1x GBH 2-21 SDS Plus Hammer Drill 1x 6mm SDS Drill Bit 1x 8mm SDS Drill Bit 1x 10mm SDS Drill Bit 1x Auxiliary Handle 1x Depth Gauge 1x Machine Cloth 1x Carry Case