About the Shockwave 49-66-4535 Magnetic Power Groove Nutdriver, 3/8 in, 1/4 in Hexagonal Shank, Steel
The Milwaukee 49-66-4535 model 3/8" X 2-9/16" Shockwave Magnetic Nut Driver is a part of the Shockwave Series. This driver is engineered for extreme durability and up to 10X the life of competitors drivers. It's made from proprietary steel and heat treated to control the hardness. It's design gives you a robust secure grip and unyielding bit engagement.