Proto Hex Key 6MM Round Head J46318B-SBD

Proto's professional-grade 6mm metric standard arm hex key, engineered for precision and high-torque performance in industrial and mechanical maintenance applications. Forged from premium alloy steel and heat-treated for maximum structural integrity, this L-key is designed to resist rotational distortion even under heavy loads. Its precision-machined tips ensure a secure, non-slip fit into metric hex fasteners to prevent rounding, while the industrial black oxide finish provides a layer of protection against rust and corrosion.
Key Features
Precision-sized at 6mm for exact engagement with metric hex socket fasteners.
Manufactured from heat-treated alloy steel for exceptional strength and long-term durability.
Industrial black oxide finish offers superior resistance to corrosion, rust, and wear.
Standard arm configuration with an 88mm (3-15/32") long arm and 31mm (1-7/32") short arm for a versatile balance of reach and leverage.
Precision-cut ends facilitate full contact with the fastener head to minimize stripping.