Blade: Chrome-vanadium steel, through hardened, chrome-plated.

Standards: Based on ISO 2936L.

Application: Insert screws into or remove from boreholes, especially in difficult to access areas.

Extra: Space saving ProStar allows the easy removal of each key without moving any others. MagicRing® of spring steel (from size 3 mm) secures all hex standard screws independently of screw material in any position. The ball end enables the user to work at angles up to 25°.