This 13-piece metric hex key set features a versatile long arm/short arm design for extended reach and maximum leverage. Each wrench is treated with a durable black oxide finish to prevent flaking and a chamfered tip for a precise, smooth fit into fasteners.

• Precisely sized, chamfered ends ensure a snug fit and smooth insertion to reduce wear on both the wrench and fastener heads.
• Durable black oxide finish provides corrosion resistance without the risk of plating chipping or flaking under high stress.
• Versatile long arm/short arm design offers extended reach on one end and extra leverage on the other.
• Color-coded, hinged housing opens flat for easy access and instant size identification.
• Comprehensive 13-piece metric set includes: 1.27, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 8, and 10 mm sizes.