Wera Kraftform Kompakt VDE components undergo dielectric strength test under a 10000-volt load in a water bath to reassure users that their screwdrivers have been exhaustively tested for their most important feature; their insulation Each individual Wera VDE screwdriver and component is subjected to this test to guarantee safe working up to 1000 volts Both handles in this set feature Kraftform Plus ergonomics; with hard gripping zones for high working speeds and soft zones ensure comfort during intensive use and high torque transfer For Kraftform Kompakt VDE blades the handleinterchangeable blade system allows a rapid exchange of the blade and multiple applications Contains 2 x 154mm KK 62 iS Phillips Blades PH1 PH2 2 x 154mm KK 65 iS PZS Blades PZS1 PZS2 minus blades for combination screws 3 x 154mm KK 67 iS TORX® Blades TX15 TX20 TX25 1 x 154mm KK 67 i TORX® Blade TX10 3 x 154mm KK 60 iS Slotted Blades 35 4 55mm 1 x 154mm KK 60 i Slotted Blade 25mm 2 x 154mm KK 65 iS Povidriv Blades PZ1 PZ2 1 x 817 VDE Blade Holding Handle 1 x 7400 Adjustable VDE Torque Handle that has a range of 12-30 Nm Distinct audible and perceivable excess load signal when the pre-set torque value is reached Unlimited torque for manual loosening