Features ALLOY STEEL CASTING - Made with high quality alloy steel, the Allen wrench has high hardness, great tenacity, high torque, easy operation, comfortable crutch grip and long-term operation without hurting hands. FINE WORKMANSHIP: The hex key has undergone cooling treatment with high hardness and tenacity; Easy to use, ultra-long Allen wrench, long torque, energy-saving design. EXTRA LONG ROD: Widely used for CNC machine maintenance, narrow gap adjustment and fixing, car maintenance lamp adjustment, garment sewing machine maintenance, etc. EASY TO CARRY: Due to its small size and light weight, the wrench is easy to carry and convenient to use. IDEAL TOOL GIFT: The 5mm allen wrench is an ideal gift for your carpenter friends, which can help them achieve more accurate work! Specification: Item Type:Flat Head Allen Wrench Material: alloy steel. Specification: Approx. 5 mm / 0.2 inches. Package List: 1x Flat Head Hex Key Package List 1 x Flat Head Hex Wrench