DESCRIPTION Our 1/4" Dr. Insert Tamper Star Bit Socket includes 2 parts: Sockets: High-quality Chrome Vanadium Steel with a two-tone surface and knurled pattern. Bits: S2 Steel with a protective zinc phosphate layer. Tempered and hardened. Specialized for security screws with a center pin, ensuring only tamper-proof tools can engage. Frequently used in situations requiring high security, like in electronic devices and systems, security systems, and appliances. MORE PRODUCTS More 1/4" DRIVE BIT SOCKET More BIT SOCKET