Tamperproof Screwdriver, with 7 double-ended interchangeable steel bits

Tamperproof Screwdriver with 7 double-ended interchangeable steel bits   The Groz Tamperproof Screwdriver with retracting cartridge has a patented retractable bit cartridge makes it easy to find, store and change bits.  The tamperproof design is a must for all commercial and industrial tradesman including electricians, locksmiths and maintenance personnel.  7 double end professional quality bits. Specially engineered ABS resin handle. Industrial Grade S2 modified steel bits with Rockwell hardness 58-62. Magnetic bit holder with easy guide collar.