молот бурового отверстия
2. Reduced Friction The helical shape minimizes friction between the drill bit and the material. This reduction in friction leads to less wear and tear on both the drill bit and the drilling equipment, extending their lifespan.
Maintenance Considerations
3. Environmental Remediation Bullet teeth are also used in augers for soil sampling and contamination assessment. Their precision and effectiveness facilitate the extraction of soil cores for testing.
bullet teeth for augers

The reason:
Inlet valve is not open or has silted
Suction line resistance is too high or blocked
Suction height is too high
Inlet valve is not open or has silted
Suction line resistance is too high or blocked
Suction height is too high