This part of ISO 28927 specifies a laboratory method for measuring handtransmitted
vibration emission at the handles of handheld,
powerdriven drills and impact drills. It is a typetest procedure for establishing the
magnitude of vibration in the gripping areas of a drill fitted with a drill bit. It is intended that the results be used to compare different models of the same type of machine.
This part of ISO 28927 is applicable to straight drills, drills with a pistolgrip and angle drills intended for drilling holes with rotating or impact action in all kinds of materials (see Clause 5), driven pneumatically or by other means. It is not applicable to heavyduty drills with a screw feed or drills driven by a combustion engine.
NOTE To avoid confusion with the terms “power tool” and “inserted tool”, machine is used for the former throughout this document