Output: DIN 3121, ISO 1174, Form F 6.3 + F 10. Drive: DIN 3126, ISO 1173, Form E 6.3. Application: For machine-operated socket wrench inserts. Extra: Easily recognizable contents thanks to large symbols. Standards: DIN 3121, ISO 1174, Form F10 Packaging: Plastic box, reusable and dust-repellent. For universal applications DIN 3126, ISO 1173, Form E6.3.