Quality 32 Piece Industrial Driver Bit Tamper Proof Set with Security Bits. 30 Security Industrial Bit Tips with a quick release bit holder and a socket adapter for 1/4" bits. Made from S2 modified shock resistant steel for professional performance and durability. Proprietary precision CNC machined tips for excellent fit in fastener recess. Durable drop resistant case with a convenient belt clip makes it easy to carry around. Magnetic quick release bit holder included.