Demolition Hammer Makita HM0870C 1100 W Impact Energy 11.4 J

The Makita HM0870C 1100 W demolition hammer delivers a maximum impact energy of 11.4 J and is built for demanding chiselling and demolition work. The tool features an 1100 W motor, an impact rate of 2650 bpm and a measured vibration level of 11 m/s² during chiselling. With a service weight of approximately 5.04 kg and a compact width of 450.9 mm, this demolition hammer is intended to provide balance between power and handling for horizontal and general demolition tasks. The model accepts SDS‑MAX bits and includes an adjustable 12‑position bit angle to support varied working positions.

Advantages

The combination of an 1100 W motor and 11.4 J impact energy provides sustained striking force for breaking and chiselling in concrete and masonry. Constant speed control helps maintain performance under load, while the relatively low vibration level for this class of tool improves operator control during extended use. The tool's weight and 12 bit angle settings support more precise handling and ergonomic positioning for a range of demolition tasks.

Suitable for (tasks / use cases)

• Chiselling and breaking concrete slabs and masonry
• Removing tiles and plaster in renovation projects
• Horizontal demolition work where controlled striking is required
• Preparing surfaces for reconstruction or installation of utilities

Key specifications

• Motor power: 1100 W
• Maximum impact energy: 11.4 J
• Impact rate: 2650 bpm
• Vibration level during chiselling: 11 m/s²
• Weight: approximately 5.04 kg
• Tool width: 450.9 mm
• Bit type: SDS‑MAX compatible
• Adjustable bit angles: 12 positions

How to use

Use the HM0870C with SDS‑MAX chisels appropriate for the material and the task. Secure the chosen bit in the SDS‑MAX holder according to the tool's instructions until it locks. Select a comfortable bit angle from the 12 available positions to align the chisel with the work surface. Start the tool and allow it to reach operating speed; apply steady pressure and guide the hammer across the work area while avoiding excessive lateral forces. When chiselling, work in short intervals as needed to maintain control and reduce user fatigue. Follow standard electrical safety practices and disconnect the tool from power before changing bits or performing maintenance.

Usage recommendations

For extended work sessions, use anti‑vibration gloves and hearing protection, and adopt a posture that minimizes strain. Choose the bit shape and size that match the demolition task, and allow the tool to work with consistent, moderate pressure rather than forcing it to maximise service life and maintain stable performance.