The 15-In-1 Tamperproof Driver Red/Black is a must for all commercial/industrial tradesmen i.e. electricians, locksmiths, telephone technicians, maintenance personnel, etc. The Tamperproof assortment includes the most popular security bits, including Spanners, Hex Pins and Star Pins. The shaft opening serves as a 1/4-Inch hex driver, while the pull-out cartridge holds seven double-ended bits. The shaft is alloy steel, while the handle is made from engineered nylon Triax resin. The EZ Guide collar helps maintain full contact between the bit and the screw for easier screw driving. This professional quality driver is made in the USA.