I used this 5 weeks into my job and never again. Extremely tough! The Matco Tools MT2779 Pneumatic Composite Air Impact Wrench is a high-quality single item tool designed for automotive use. With a 1/2" drive size and an air inlet size of 1/4", this impact wrench provides reliable performance and durability. Manufactured in Taiwan by Matco Tools, this product comes with an air hose fitting and does not have a warranty. Whether you are a professional mechanic or a DIY enthusiast, this air impact wrench is a valuable addition to your tool collection.