Milwaukee 48-32-1505 40-Piece Screwdriving Set w/ Phillips, Slotted, Square, and Torx Bits, Nut Setters, and Magnetic Guide KIT INCLUDES: 20 x Phillips Bits, 9 x Square Bits, 6 x Torx Bits, 2 x Slotted Bits, 1 x 1/4" Nut Setter, 1 x 5/16 Nut Setter, 1 x Magnetic Drive Guide NUT DRIVING: This kit can be used to drive common fasteners, including nuts, making this useful for a variety of industries, from construction to automotive MAGNETIC DRIVE GUIDE: Use this to replace bits without needing to tighten or loosen your drills collet. This is ideal for fast changes on jobsites where you find yourself working with many different fasteners at once PREMIUM S2 STEEL: A proprietary steel blend from Milwaukee makes these bits stand up to high-impact forces found on rugged jobsites HEAVY DUTY CASE: These bits are organized together in a heavy plastic case for your convenience. Its sliding lock ensures that everything stays in place while in storage or transit