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• Following Sizes T5, T6, T7, T8, T9, T10, T15, T20, T25, T27, T30, T35 and T40
• 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
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• DESCRIPTION: Size: T5-T40 Length: 75mm Material: S2 alloy steel Type of head: Torx Type of shank: Hex