Demolition Hammer DeWALT DCH911X3-QW

The DeWALT DCH911X3-QW demolition hammer is a cordless, high-performance tool engineered for heavy-duty breaking, chiselling and demolition work. It uses a brushless motor to improve efficiency and component life while delivering up to 19.5 joules of impact energy for effective concrete and masonry removal. The tool integrates active vibration control to reduce user fatigue and an ergonomic, lightweight housing for improved handling. An on-board dust extraction interface supports cleaner operation on site.

Advantages

The brushless motor provides higher efficiency and reduced maintenance compared with brushed alternatives, extending runtime and service life. With an impact energy rating up to 19.5 J, the demolition hammer handles large-scale chipping and breaking tasks with fewer passes. Active vibration control lowers felt vibrations during extended use, improving operator comfort and control. The compact, balanced design and ergonomic handle enable better manoeuvrability in confined areas. The built-in dust extraction interface helps maintain a cleaner work environment and complies with jobsite cleanliness expectations.

Suitable for

• Breaking and removing concrete slabs and foundations
• Chiselling and shaping masonry and stone
• Removing tiles, screed and adhesives
• Demolition work in renovation and construction projects
• Situations where cordless mobility and dust control are important

Key specifications

• Tool type: Cordless demolition hammer
• Motor type: Brushless
• Impact energy: Up to 19.5 joules
• Vibration control: Active vibration reduction system
• Design: Lightweight, ergonomic housing with adjustable handle
• Dust management: Integrated dust extraction interface

How to use

Fit the appropriate chisel or point accessory into the tool’s SDS system following the manufacturer’s insertion and locking procedure. Select the required impact mode if applicable and ensure the dust extraction connection is secured when using dust control. Hold the tool with both hands on the ergonomic grips, position the chisel on the work surface, and apply steady pressure while allowing the tool’s impact energy to do the work. For deep or large-scale removal, work in controlled passes to avoid overloading the battery and motor. Observe all safety precautions, including eye, ear and hand protection, and follow site dust mitigation rules.

Usage recommendations

Use compatible high-capacity batteries and a charger recommended by the manufacturer to achieve optimal performance and runtime. When working on reinforced concrete or very hard materials, use progressive passes with appropriate chisels to prevent tool overload. Connect a suitable dust extraction system for prolonged indoor use to reduce airborne particles. Regularly inspect and clean the tool’s ventilation and chuck area to maintain performance and service life.