The Makita Impact Black Torsion Bits are designed for durability and efficiency, featuring a 1/4 hex shank and a length of 25 mm. Available in sizes T15, T20, T25, T30, and T40, each set includes two bits, ensuring you have the right tool for various fastening applications. The torsion design enhances performance by absorbing torque, reducing wear and extending the lifespan of the bits, making them ideal for heavy-duty use in both professional and DIY projects.