The britool insulated screwdrivers have a bi material ergonomic comfortable and effective handle each product is tested to 10000 volts designated with a blue bit colour code and incorporating a round burnished blade with insulation in orange pvc the britool brie160912b 10 piece set of 1000v insulated screwdrivers comprises 4 screwdrivers for slotted head screws 25 x 50 35 x 75 4 x 100 55 x 150mm2 pozidriv screwdrivers pz1 x 100 pz2 x 125 3 phillips screwdrivers ph0 x 75 ph1 x 100 p