Milwaukee Hand Tools VDE Socket Wrench Screwdrivers are manufactured from premium steel, molybdenum and vanadium for flexibility and durability. They have a CNC ground screwdriver tip that sits accurately within the screw head and does not move accidentally. Black phosphate coating improves grip and helps prevent rust. Fitted with a 2-piece soft grip handle that makes working more comfortable. The 3-slot design improves grip and helps move all the power up to the tip. Fitted with a slip-resistant, 3-sided collar. The size and type are laser engraved on to the handle, making them easier to identify. Slim, narrow design for low torsional work and high precision electrical work. VDE tested to 10,000V and guaranteed to 1,000V.