Vario Adapter 1/2" - The impact wrench-compatible Vario Adapter transforms the impact wrench into a tap, thereby expanding its functionality to include an entirely new machine. It is suitable for all impact wrenches with a 1/2" external square drive. The FEIN Vario consumables can be changed easily and without tools. Compatible with all FEIN Vario accessories - twist drills, countersinks, and taps. Enables simple and machine-assisted drilling, countersinking, and tapping up to M30. For sizes from M18, we recommend the FEIN Vario Adapter 3/4" with a larger machine for faster progress. Unlike a drill driver, the impact wrench allows for easier and more powerful operation when tapping. The adapter can be easily attached and secured for continuous use with a locking spring or retaining ring.