SWANLAKE 20PCS Tamper Resistant Star Bit Set,Torx Bit Set, Impact Grade Security Torx Bit Set,1/4-inch Hex Shank, S2 Alloy Steel, T4-T40

Industrial grade S2 alloy steel bits，with sturdy hardened & tempered construction, Complete rust and corrosion resistance.

This 20pcs screwdriver bits set includes 15pcs tamper resistant star bit set,PH1 PH2 phillips,4.5mm&7mm slotted bits and an AD connector.

Tamper Resistant Star Bit Set are: T-4,T5,T5,T-6,T-7,T-8,T-9,T-10,T-15,T-20,T-25,T-27,T-30,T-35,T-40, with Storage Sleeve black Case.

Insert smoothly with precision chamfer bit ends.

Sizes are stamped on bits and green-printed on storage organizer for faster recognition.