EKLIND's 9 Piece SAE Fold-Up Hex Key Set is a convenient fold-up hex key set that offers a comprehensive range of hex keys for tackling various fasteners. These SAE hex keys can be used across an extensive range of applications and product categories. The fold-up design makes it easy to carry the tools with you. Each short arm hex key is made of alloy steel and comes complete with a black oxide finish. Their alloy steel handles provide better grip, especially in wet conditions. They are sized from 1/4" to 7/64", while the arm length ranges between 2" and 3.70". Whether you are a professional or hobbyist, you will definitely want to equip yourself with EKLIND's 9 Piece SAE Fold-Up Hex Key Set.