Quick Change Magnetic Holder The DeWalt quick change magnetic holder is an extremely durable and useful attachment. Use this to increase your driving efficiency and decrease your work time. Superior build quality means you will be using this bit for years with minimal wear and tear. A must have for any professional or do-it-yourselfer. Features: Shock-resistant tool steel for maximum durability Extra-strength magnet for superior bit retention Heat-treated; resists breakage and wear Specifications: Quantity: 1 DEWALT is firmly committed to being the best in the business, and this commitment to being number one extends to everything they do, from product design and engineering to manufacturing and service.