Wera Kraftform Plus VDE Hexagon Screwdrivers (164i) Precision insulated 1000V Hexagon screwdrivers with Kraftform handles for excellent comfort and control. Kraftform ergonomic handle with soft and hard zones Soft zones for extra grip and pressure with optimal contact zones resulting in increased torque transfer Hard zones designed for full hand contact when driving for fast friction free working Hexagon shoulder to avoid rolling Size and tip type marked on the end of the handle for instant identification of the right screwdriver Standards IEC 60900