Demolition Hammers Specs & manuals ↓
US Hammer GB-70 Gasoline Concrete Breaker
The US Hammer GB-70 is a self-contained gasoline breaker announced with a 70-pound tool weight and 64 foot-pounds of impact energy. The manufacturer’s 2019 product announcement identifies a 2 hp, 50 cc Honda four-stroke engine, vibration-reducing technology and operation without an external air compressor. These are dated manufacturer-announced ratings; exact-model operating instructions are requested through US Hammer.
Estimated equipment rental only. Delivery, taxes and applicable fees quoted separately. Final pricing confirmed with dispatch.
Specifications
Equipment
- Manufacturer
- US Hammer
- Model
- GB-70
Model-specific 2019 manufacturer announcement
- Model
- GB-70
- Published tool weight
- 70 lb
- Impact energy
- 64 ft-lb
- Drive
- Self-contained gasoline engine
Shared factory-announced engine & features
- Engine
- Honda single-cylinder fan-cooled four-stroke
- Engine displacement
- 50 cc
- Published engine power
- 2 hp, 2019 manufacturer announcement
- Fuel
- Gasoline
- Fuel-use claim
- Less than 4US gal per 8 hour day; manufacturer claim, application dependent
- Sound level claim
- 100 dBA; 2019 announcement, measurement method not stated
- Vibration control
- Vibration-reducing technology
- External power
- No air compressor, generator or hydraulic power pack needed
- Application
- Concrete, asphalt and groundbreaking demolition
Documentation & identity
- Source provenance
- 2019 product announcement credited to US Hammer, published by For Construction Pros
- Source qualification
- Historic manufacturer-announced model ratings; not new 2026 production configuration claim
- Operator instructions
- Request exact GB-70 operating instructions from US Hammer
- Photo qualification
- GB-70 exact rear photo; family application photo; GB-90 gallery uses honestly identified family reference
- Unverified details
- Chuck size, blow frequency and dimensions not asserted without manufacturer proof
Equipment Details
Capabilities & Features
- Self-contained gasoline power
- Honda 4 stroke engine
- Vibration-reducing design
- No external compressor
Available Options
- Manufacturer-confirmed compatible breaker bits
