4pc Extended Magnetic Nut Driver Set

Our Montana Brand Magnetic Nut Drivers are engineered and manufactured for quality and durability.   Part Number - MB 66144 Product Features & Benefits: Designed and engineered to ensure accurate specifications and superior quality Manufactured utilizing premium shock resistant S2 steel to reduce stress fractures and accessory failure Proprietary, task specific heat treatment to control hardness for superior strength Engineered and machined to prevent slipping and stripping Extra-strong neodymium magnet for fastener and nut retention High resistance to abrasion for extended life and performance Precision machined shank geometry for improved impact driver and quick change chuck fitment Made in the USA Sizes Included: 1/4", 5/16", 3/8", 7/16"   WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.