The Carlisle Tools HKIS6M 6 Piece Insulated Allen Key Set includes sizes 2.5, 3, 4, 5, 6, and 8mm, all in one convenient set. Made in the United States by Carlisle Tools, this set is designed for precision and durability. Each allen key is insulated for safety and comfort during use. Perfect for professionals and DIY enthusiasts alike, this set offers a reliable and high-quality solution for various fastening needs.