This is the Bondhus Gorilla Grip 9-Piece Fold Up Standard Hex/Allen Wrench Set.  These are very high-quality, and they include a Lifetime Warranty from the manufacturer.  This includes the following sizes: .050", 1/16", 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", and 3/16 inch wrenches.

Features:

• Maximum strength Protanium Steel construction: High Torque Steel that's 25% stronger than the competition
• Corrosion resistant black Proguard finish creates crystalline structure that doesn't allow water to penetrate
• Precision tip eliminates cut off burr problems
• The rotation feature: 90 degree stop feature converts the tool into a non-stop, time-saving spin wrench
• Space age composite handle "stronger than steel"
• Lightweight ergonomic design handle is not temperature sensitive when working in extreme hot and cold conditions with bare hands
• Turn & Flip feature: means not having to disengage the tool from the fastener when working up against walls or other obstructions
• Tool isolating flutes and adjustable key tension
• Bondhus' lifetime warranty