Wiha Insulated TorqueVario-S SoftFinish Handles are the standard for premium quality featuring ergonomic cushion grip handles for comfort and control, dual durometer construction for long-lasting durability, handles directly molded for a permanent bond, and include parallel flats for roll-off prevention. TorqueVario-S Handles feature an audible and perceptible click for alerting users the desired torque limit is attained with a torque accuracy of +/- 6% for confidence in precise tolerances. Wiha premium quality SlimLine Blades consist of Wiha premium quality tool steel for strength and durability and have exact fit precision machined tips for reduced cam-out. Each blade has a black oxide finish for corrosion protection and direct molded insulation for protection against electrical shock and arc flash explosion and features 33% narrower blade shafts for reaching deep set fasteners. The SlimLine Torque Blade Holder boasts the Wiha ClicFix feature for secure lock and quick release of SlimLine Blades and have a direct molded insulation for protection against electrical shock and arc flash explosion.