This 13-piece metric hex key set features a ball end design that allows for a 25-degree entry angle to reach around obstructions. The black oxide finish provides durable corrosion protection without the risk of flaking or chipping, ensuring a precise fit every time.

• Ball end design allows up to a 25-degree entry angle for easy access around obstructions.
• Chamfered ends ensure a snug fit and smooth insertion, reducing wear on both the wrench and fastener heads.
• Durable black oxide finish protects against corrosion without the risk of flaking or chipping found in plated finishes.
• Versatile long arm/short arm design provides extended reach on one end and extra leverage on the other.
• Organized color-coded hinged housing opens flat for easy access and quick size identification.
• Complete 13-piece metric set includes sizes: 1.27, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 8, and 10 mm.