When removing and anytime you open up a HV pack, be careful, as it still has enough voltage and current to hurt and/or kill you. This kit offers an affordable grouping of insulated tools rated to 1000 volts. Use these insulated tools when you open the cover of the HV pack and/or removing cells or modules inside that pack. Depending on the OEM, you may need more tooling. We also sell insulated screw drivers, P/N AZJ010.