Increases your efficiency: Optimized torsion zone for soft screwing, e.g. in wood. Saves time: Simple and quick recognition of the profile size thanks to high-contrast laser marking. Drive: DIN 3126, ISO 1173, Form E 6.3. Application: When screws need to be lifted out of or inserted into holes. Application: For all types of screw connections in trade and industry. Extra: MagicRing® made of spring steel holds all standard screws in any position. Standards: DIN ISO 2351-3 Material: High-quality chrome-vanadium steel, hardened throughout. DIN 3126, ISO 1173, Form E6.3.