Do it Standard Short Arm Hex Key Set, 7-Piece is crafted from high-quality chrome vanadium steel that is hardened and tempered to ensure a longer life and reliable performance. This durable set includes seven essential sizes—5/64", 3/32", 1/8", 5/32", 3/16", 7/32", and 1/4"—making it for a variety of tasks. The hex keys come packaged in a reusable plastic holder for convenient storage and easy access, helping you keep your tools organized and ready for use. Model Number: 348112