BH-7E is designed as the light weight breaker and for vertical breaking.
Previous model BH051 was light weight, but the power was not efficient.
For that reason, user required light weight but more powerful model.
This is the lightest model in Maruzen breakers range, but the power is clearly 2 or 3 times stronger comparing with an electric and pneumatic breaker in same weight. We have got good reputation from some customer that BH-7E can have work done 10 minutes which normally takes 1 hour with electric one. It means BH-7E has 6 times efficiency.
Because of the light weight and power, it will obviously help to work in narrow space and work efficiency would improve rapidly.
BH-7E is always judged to be weak because of prejudice by weight, but once you use BH-7E, it would be difficult to release this machine.
https://www.youtube.com/watch?v=s1iQtTvZHbk