1522NA is a part of Apex Tool Group, specifically part of their Master Mechanic® line. It is a 20 piece every day selections driver bits set. The set includes 10 nut driver bits, 10 2" power bits and 3" power bits, and a bit holder. The bits are made of high grade steel and are color-coded according to size. The bit holder is made of durable plastic so it won't rust or corrode, and is ergonomically designed for comfortable use. This set is perfect for a handyman, mechanic, electrician, or DIYer. It is also great for a professional workbench, offering a variety of bits for both power and manual use.