World of Draper offers here the Knipex 'S' range of fully insulated pliers, cutters and general tools for professional electricians. These tools are insulated for use up to 1000 volts AC and 1500 DC and are made from the highest grade materials manufactured and tested to conform to the latest regulations of National and International Standards. There expert quality tools are are tested for use on live conductors. WARNING: When working on electrical installations, it is safest to disconnect these systems from the power supply. Only a skilled and qualified electrician should work on live installations and then only in accordance with the relevant industrial safety standards.