General description Set of 11 long Torx bits designed for use with screwdrivers and electric screwdrivers. These magnetic bits feature a 1/4 inch hexagon shank and come in sizes ranging from T6 to T40, making them versatile for various applications. Technical specifications Length: 100 mm Material: S2 Alloy Steel Head Type: Torx Shank Type: 6.35 mm / 1/4 inch Hex Available sizes: T6, T7, T8, T9, T10, T15, T20, T25, T27, T30, T40 Usage Compatible with manual screwdrivers, electric screwdrivers, and electric drills. Magnetic feature allows screws to stick to the bits, facilitating easy removal from deep holes without turning or shaking the object.