Built out your collection of drill bits with this convenient Barn Star 34 pc. Security Bit Set with Folding Rack. Featuring an array of the most commonly used drill bit sizes, plus a magnetic bit holder and a socket adapter, this tool set has you covered for many types of projects and jobs. Each component is made from durable chrome vanadium steel and comes labeled for easy size identification. All the drill bits even store conveniently in the included folding rack for organization made easy.