Easy and convenient socket work with an impact driver! Impact Long Socket Bit Reinforced hex shank Able to work without breaking even under strong torque Lineup capable of a variety of tasks 8, 10, 11, 12, 13, 14, 17, 19, 21 (unit: mm) Socket work can be done easily and conveniently for impact drivers. The shank is strengthened, so there is less damage even when working with strong torque. Product Images (DWA612044 8mm)