An insulated adjustable spanner featuring an easy to read measuring scale, to allow for the width to be pre-set, with a range of 0 to 30mm, together with a two colour soft grip insulated handle with slip guard. Manufactured to IEC60900 standards, for safe operator use on live circuits up to 1000v AC and 1500v DC. Suitable for use by technicians and mechanics working on hybrid and electric vehicles, together with professional electricians and installers.