The Allen 56628G 8-Key Metric Hex Key Fold-up Set includes the following sizes: 1.5, 2, 2.5, 3, 4, 5, 6, 8.
From Allen, the original manufacturer of the hex key
Heat treated, tempered alloy steel provides high strength and resistance to rotational distortion
All hex keys are precision formed to exact dimensional tolerances for precise fit
Rotates to 270-Degree to a firm stop for better torqueing and access
Dual material case is color coded for quick identification: SAE – green, Metric blue