Deals with the safety of hand-held motor-operated or magnetically driven tools, specific requirements for concrete vibrators. The rated voltage being not more than 250 V for single-phase a.c. or d.c., and 440 V for three-phase a.c. tools. This consolidated version consists of the second edition (2003) and its amendment 1 (2008). Therefore, no need to order amendment inaddition to this publication.