Tamper Proof Security Bits in the Following Sizes T5, T6, T7, T8, T9, T10, T15, T20, T25, T27, T30, and T40?Note: T5 is not security tamper proof type) Drill bits made from high quality S2 steel material for ultimate durability, suitable for industrial use Strong magnetic and high precision. each edge can be accurately locked screws, no damage to the screw and the screwdriver head Not only can you use the bits on hand tools, you can easily insert them to any 1/4 inch hex shank power drill to use Product Description Important! About T5 and T6, due to their small size, they are not as hard as the large size bit, we don't recommend you to use it with power tools. Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Customer Reviews 4.5 out of 5 stars 3,680 4.5 out of 5 stars 3,680 4.5 out of 5 stars 3,680 4.5 out of 5 stars 3,680 4.4 out of 5 stars 842 4.5 out of 5 stars 3,680 Price $9.99$9.99 $9.99$9.99 $9.99$9.99 $13.99$13.99 ? $11.99$11.99 Magnetic ? ? ? ? ? ? Length 3 in 3 in 3 in 2.3 in 2.3 in 1 in/2.3 in Material S2 Steel S2 Steel S2 Steel S2 Steel S2 Steel S2 Steel Quantity 12 pcs 12 pcs 12 pcs 20 pcs 20 pcs 24 pcs Type 1/16, 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 3/16, 7/32, 1/4, 5/16 and 3/8 inch T5, T6, T7, T8, T9, T10, T15, T20, T25, T27, T30, and T40 2 piece * PH1 / 4 piece * PH2 / 2 piece * PH3 / 3mm (slotted) / 4mm (slotted) / 5mm (slotted) / 6mm (slotted) SAE 5/16, 1/4, 7/32, 3/16, 5/32, 9/64, 1/8, 7/64, 3/32 and 5/64 inch. Metric 8mm, 7mm, 6mm, 5mm, 4mm, 3.5mm, 3mm, 2.5mm, 2mm and 1.5mm SAE 5/16, 1/4, 7/32, 3/16, 5/32, 9/64, 1/8, 7/64, 3/32 and 5/64 inch. Metric 8mm, 7mm, 6mm, 5mm, 4mm, 3.5mm, 3mm, 2.5mm, 2mm and 1.5mm T5, T6, T7, T8, T9, T10, T15, T20, T25, T27, T30, and T40 REXBETI Item Number REX063 REX071 REX072 REX073 REX080 REX084 12-Piece Torx Head Screwdriver Bit Set T5, T6, T7, T8, T9, T10, T15, T20, T25, T27, T30 and T40 Precision and Accurate Drill bits made from high quality S2 steel material for ultimate durability, suitable for industrial use. Each edge can be accurately locked screws Laser Etched Sizes Easy to read markings allow for quick idetification Great For Power Tools Not only can you use the bits on hand tools, you can easily insert them to any 1/4 inch hex shank power drill to use