What types of tools typically create the highest HAV risk?

The most dangerous instruments are those that produce a lot of vibration and are used for extended periods of time. Hammer drills and breakers, grinders, and chainsaws are typical examples.
Wrenches with impact and sanders with power
These are frequently necessary for work in forestry, fabrication, construction, and maintenance. The length of time the worker uses the tool each day affects the risk in addition to the vibration's intensity.