Sirius Long Hexagon Allen Key Metric

This Sirius Long Hexagon Allen Key is sized at 10mm, a versatile and frequently used metric size found across a broad spectrum of engineering, automotive, and maintenance applications. It bridges the gap between mid-range and larger hex fastener requirements. Constructed from alloy steel, it delivers the strength and wear resistance needed for consistent professional use. The long arm extends reach into deep or awkward fastener locations and provides improved mechanical advantage over standard-arm keys.