Dewalt DT50060-QZ Impact Drill Tap Countersink Set 5-Piece M4 M5 M6 M8 M10 New

These drills are equipped with a 1/4 hex shank, purpose built for impact drivers, and engineered with an Impact Ready shank to maximize wear and impact resistance. 5-Piece: M4 M5 M6 M8 M10. Speed Tip penetrates material quickly".

eBay