How do I know what level of vibration tools have?

The vibration levels of a power tool are stated in the operating manual. Every manufacturer of power tools has been obliged to provide this information for many years. However some manufacturer’s vibration data can be misleading, since it was measured with early versions of test standards that were not designed to reflect typical ‘in use’ vibration levels. A great deal of work intended to harmonise vibration test standards is in progress, and will settle shortly on just one test code for each category of tool. 
The vibration level obtained in this way will be reliable, comparable and give a better indication of vibration levels likely to be experienced by the operator while carrying out most common tasks in the workplace. Manufacturers of electric power tools will amend their operating manuals and test codes in accordance with EN 60745 over the course of 2006/7. Bosch have already tested hammers to the latest revision of EN60745-2-6, and will publish data for all our range of power tools as soon as the relevant test codes have been approved. Talk to our technical helpline 01895 838791 if you need further advice or information.