Klein Tools replacement bits quickly and easily fit into Klein's 10-in-1 Screwdriver/Nut Driver. The heat-treated bits are industrial strength for the ultimate in durability and performance. Klein Tools has the screwdriver and
Amazon.com: Klein Tools 32557 Multi-Bit Screwdriver / Nut Driver, Heavy Duty 10-in-1 with Interchangable Shafts and Ph, Sl, Sq, Hex Bits and Nut Drivers : Tools & Home Improvement
Klein 32477 10-in-1 Multi-Bit Screwdriver/Nut Driver with slotted bits
Klein Tools 10-in-1 Screwdriver/Nut Driver 32477 - The Home Depot
Klein Tools 11-in-1 Magnetic Multi Bit Screwdriver / Nut Driver 32500MAG - The Home Depot
Klein 10-IN- 1 Multi-Bit Screwdriver/Nut Driver (32477) USA | eBay