All of Mayhew's pneumatic tools and sets are 100% Made in the USA and uniquely designed for a wide-array of automotive applications – including removing, cutting, trimming, and installing parts. Providing the specific tool to get the job done saves technicians time and improves productivity. Each tool is made of shock-resistant steel that is fully hardened and tempered to provide long-lasting durability. Additionally, they each have a black Oxide finish to prevent corrosion and feature a standard . 401 turn-type Parker shank for air or zip guns (with the exception of the 8mm valve guide remover which has a . 498 turn-type Parker shank). backed by a lifetime , The new tool sets save technicians time by providing them with the tools they need when it comes to specific automotive applications.