Multi-Bit Screwdriver Tip Size 1/4 in 5/16 in T10 T15 T20 T25 T27 T7 T8 T9 Tip Style Tamper Resistant Torx Quick Change Plain Bit Material Alloy Steel Bit Storage None Double End Magnetized Tip No Shank Material Alloy Steel Drive Size 1/4 in 5/16 in ESD Safe No