Background and Identification
Makita is a Japanese power tool manufacturer that was founded in 1915. It is a leading brand of professional-grade tools. This company produces cordless tools, power tools, petrol equipment, and batteries for the cordless tools. The tools themselves range from wrenches and drills to chainsaws and lawnmowers.
The Hammer Drill HM0870CQ is an 11 lb demolition hammer that uses high-energy vibration to chip away and drill into concrete. The model numbers HM0870C and HM0871C have different specifications, but refer to the same type of hammer and are similar enough to share an instruction and operating manual.
This demolition hammer has a few notable features. It uses automatic speed control that adjusts the amount of power needed by the motor to maintain a set speed. If the drill hammer meets a lot of resistance when in use, there is a danger of the drill bit slowing down too much and getting stuck or breaking while in the concrete. This power adjustment feature means that the drill hammer can supply extra power when the drill bit is under a heavy load, thereby avoiding this danger. The drill hammer also has 12 bit angle settings, which means that the drill bit can be set at 12 different angles, making it useful in a variety of situations.
Technical Specifications
- Overall Length: 17-3/4"
- Net Weight: 11.1 lbs.
- Power Type: Corded
- AMPS: 10
- Blows Per Minute (variable speed): 1,100 - 2,650 BPM
- Impact Energy: 8.4 ft.lbs
- Impact Energy: 11.4 J
- Vibration Control : No
- Vibration: 11 m/s²
- Noise Level: 98 dB
- Bit Type: Accepts SDS-MAX
- Breaker/Demo class: 10