Engineered for professional use, these jumbo hex keys feature chamfered ends for a precise, smooth fit that reduces fastener wear. The durable black oxide finish provides superior corrosion resistance without the risk of flaking or chipping. Each set includes a snap-in storage case with easy-to-read markings for efficient tool organization and quick selection.

• 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 protects against corrosion without the risk of flaking or chipping common with plated surfaces.
• Versatile L-shaped design provides extended reach on the long arm and extra leverage on the short arm.
• Includes a secure snap-in storage case to keep wrenches organized and protected while on the move.
• Quick tool selection with easy-to-read size markings on the storage tray.
• Comprehensive 6-piece jumbo set includes sizes: 3/8, 7/16, 1/2, 9/16, 5/8, and 3/4 in.