This vintage 12-piece metric short arm hex key set from Allen is a must-have for any tool collector or mechanic. Made in the USA, this NOS set is a perfect addition to your toolbox. The keys are made of high-quality, heat treated steel and are designed to withstand heavy use. The set includes sizes ranging from .07 mm  to 10 mm, making it ideal for a wide range of applications. Whether you are a professional mechanic or a DIY enthusiast, this Allen key set is sure to come in handy.