Draper expert insulated plain slot screwdrivers draper expert 07488 expert quality tested to 10kv suitable for working on live circuits of 1kv ac and 15kv dc chrome molybdenum steel blades hardened tempered and chemically blacked fully insulated handle and blade sheath for total safety sold loosemanufactured and individually certified to en 609002004 draper expert 07488 8mm x 175mm insulated plain slot screwdriver