HSS Countersink Tap Drill Bit Set, Combination 1/4" Hex Shank M35 Cobalt M3-M10

Multi-use drill tap deburr countersink hex bit kit. Pitch：0.5mm（M3）/0.7mm（M4）/0.8mm（M5）/1mm（M6）/1.25mm（M8）/1.5mm（M10）. Size ： M3 / M4 / M5 / M6 / M8 / M10. Opening, tapping, chamfering. Hole drilling, tapping and deburring/countersinking.

eBay