Dekton 10pc S2 Steel Impact Drive Power Bits 75mm Long Bit T10 - T40 Specifically designed for use with impact drivers. Forged tip for greater impact resistance and a longer lifetime. Tough Impact torsion heat-treated screwdriver bits for improved durability and torsion zone for reduced breakage. Ideal for continuous high torque use withstanding changes of load due to elasticity. Includes: 10 x 75mm T10, T15, T20, T25, T25, T27, T27, T30, T30, T40 Single-ended. S2 grade steel construction. Ultra Strong. 1/4" Hex Fitment.