IVY Classic's Hex Drive Magnetic Bit Holder securely holds bit with extra strength magnet for greater retention of your fastener. IVY Classic's Hex Drive Magnetic Bit Holder is designed to withstand the high torque of impact drivers. Its C-ring design has an internal clip that fits into the retaining ring notch of the insert bit to hold the bit securely in place. The Bit Holder is constructed of one-piece stainless steel. IVY Classic Industries manufactures an extensive line of bit holders in a variety of sizes and lengths. IVY Classic Industries is dedicated to producing a comprehensive, quality line of power tool accessories and hand tools.