Check the listing for details. Security Bit Set Tamper Proof Screws Torq Torx Hex Star Tri Wing Screwdriver. Condition: New. Listed at 14.24 USD. Drill Hog USA 33 Pc Security Bit Set Includes: 33 Security Bit Fasteners Sizes: (7) Security Screwdriver Bits #T8, T15, T20, T25, T27, T30, T40 (6) SAE Security Hex Screwdriver Bits #5/64, 3/32, 7/64, 1/8, 9/64, 5/32 (6) Metric Security Hex Screwdriver Bits #2, 2.5, 3, 4, 5, 6 (4) Tri-wing Screwdriver Bits #1, 2, 3, 4 (4) Spanner Screwdriver Bits #4, 6, 8, 10 (3) Torq-set Screwdriver Bits #6, 8, 10 (2) Square Drive Socket Adapter Screwdriver Bits. (1) 1/4" x 2" Magnetic Screwdriver Bit Holder Specifications: Premium CRV Steel (Chrome Vanadium) Tamper Proof Fasteners Bit Length: 1" Includes Magnetic Extension Made by Drill Hog USA Lifetime Warranty Drill Hog is proud to release the newest security bit set. This security bit set is made from Premium CRV steel. Security bits are used to remove/ionstall security screws and fasteners. Security screws are used in auto repair, cell phones, tablets, electronics, public bathroom fixtures, and many other uses. Drill Hog includes a Lifetime Warranty to the original purchaser.