DEWALT SDS hammer drill has 10.5 Joules of impact energy for fast drilling and chipping, even in the hardest concrete.E-CLUTCH system of DEWALT rotary hammer drill protects the user in bind-up situations by stopping the rotation of the bit.The SHOCKS Active Vibration Control system reduces vibration felt by the user at the handles, compared to rotary hammers without this feature.7-position, variable-speed control for precision hole placement, chipping, and drilling with Atomic Undercut bits.Constant-speed electronics allow the tool to maintain speed under load.Tag Ready so users and companies can attach the DEWALT Tag and track its location virtually anywhere via the Tool Connect app.The midweight design makes it ideally suited for high-performance, horizontal serial drilling for #5 - #8 rebar, dry coring up to 4 inch, chipping in any upper to lower wall, and bushing applications.The 1-3/4-inch SDS Max Combination Hammer is a midweight, high-performance hammer that is powered by durable German-engineered mechanisms. It delivers 10.5 Joules of impact energy for fast drilling and chipping, even in the hardest concrete. Constant-speed electronics allow the tool to maintain speed under load, while the patented E-CLUTCH system helps protect the user in bind-up situations by stopping the rotation of the bit. The midweight design makes it ideally suited for high-performance, horizontal serial drilling for #5 - #8 rebar, dry coring up to 4 inch, chipping in any upper to lower wall, and bushing applications. The SHOCKS Active Vibration Control system reduces vibration felt by the user at the handles, compared to rotary hammers without this feature. This tool comes Tag Ready, so users and companies can attach the DEWALT Tag and track its location virtually anywhere via the Tool Connect app. Technical Details Bit Type SDS Max Power Source Corded Voltage 220V Chuck Capacity 45 mm Power Input 1350W Operation Modes Hammering/Hammering with Rotation Impact Energy (EPTA 05/2009) 10.5 J No Load Speed 190-380 RPM Blows per Minute 1450-2900 bpm Optimum Drilling Capacity [Concrete] 16-32 mm Max. Drilling Capacity [Concrete] 45 mm Vibration Level 8.9m/s²  

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