Engineered by Allen, the original manufacturer of hex keys, this 13-piece set is precision-formed for an exact fit. Each key is heat-treated alloy steel to provide high strength and superior resistance to rotational distortion.

• Authentic Allen® quality from the original manufacturer of the hex key
• Heat-treated, tempered alloy steel provides high strength and resistance to rotational distortion
• Precision-formed to exact dimensional tolerances for a perfect, precise fit
• Long arm design offers increased leverage and extended reach for difficult tasks
• Includes 13 essential SAE sizes: 0.050, 1/16, 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 3/16, 7/32, 1/4, 5/16, and 3/8 in.
• Comes in a non-interference hinged caddy for easy access and organized storage