The Gedore IN 30 LK 4 1505718 is a high-quality internal hex screwdriver insert designed for professionals and serious DIYers who demand precise, durable tooling. It features a 4 mm hex size and fits standard 3/8" (10 mm) drive systems for reliable performance in a range of applications. Key Features & Design * Part / Model: Gedore IN 30 LK 4 (1505718) * Type: Innen-Sechskant Schraubendrehereinsatz (internal hex bit) * Size: 4 mm * Drive: 3/8" (10 mm) compatible drive * Quality: Precision-machined for accurate engagement * Use: Suitable with hex-socket screws and standard ratchet handles Performance / Benefits Engineered for durable, dependable performance, this internal hex insert delivers a secure fit with minimal wear during repeated screwdriving. It helps you work efficiently with hex-socket fasteners, reducing cam-out and enabling consistent torque transfer in automotive, machinery, and general maintenance tasks.