LD-161 S2 Alloy Steel Screwdriver Bit Set 33pc | Wholesale Supplier

The LD-161 S2 Alloy Steel Screwdriver Bit Set equips power drill and manual screwdriver users with a comprehensive selection of the most commonly used screw head types. Each bit is precision-machined from S2 alloy steel and heat-treated to HRC 58-62 hardness for exceptional wear resistance and long service life even under high-torque power drill applications. The standard 1/4 inch (6.35mm) hex shank fits all standard power drill chucks, bit holders, and manual screwdriver handles. The 33-piece set includes Phillips PH0, PH1, PH2, and PH3 bits for cross-recess screws; slotted 4mm, 5mm, 6mm, and 7mm bits for flat-head screws; Torx T10 through T40 security bits for star-recess fasteners; and hex key bits for Allen head screws. Both standard 25mm length and extended 50mm length bits are included for reaching recessed screws. A magnetic bit holder with strong neodymium magnet keeps bits securely engaged during overhead and inverted driving. A 60mm extension bar extends reach for deep pocket or thick material applications. All components store in a transparent PS plastic case with molded individual compartments that keep bits organized and prevent loss. Whether assembling furniture, installing cabinets, working on electrical panels, or performing general household repairs, the LD-161 bit set provides the right driver for every screw.