About This Screwdriver shafts are made of heat-treated S2 steel, which provides more impact strength than most CR-V steels, and the chrome plating provides higher hardness. More suitable for professional work Magnetic screwdriver tip tightly picks up screws and prevents them from falling out. Black oxide process provides improved durability and secure grip without compromising the installation of the tip Available in 2 style screwdrivers, including 3 pcs flat head screwdrivers(1/4 "x4 ", 3/16 "x6 ", 5/16 "x6 ") and 3 pcs phillips screwdrivers(P1x3 ", P2x4 ", P2x6 "). Clear size markings on the handle for easy identification SureGrip handle with knurled design, adding triangular grip texture for large torque applications, allows you to work comfortably with speed and precision. Realizes efficient and precise operations A century of heritage, SK is committed to delivering high-quality products crafted for exceptional durability and performance to American professionals Overview Brand : SK Number of Items : 6 Head Style : Flat, Phillips Material : Alloy Steel Color : Green