JTENG 6Pcs HSS Countersink Tap Drill Bit Set Combination Hex Shank Titanium Screw Thread Metric Tap Drill

Good for light threading, I would suggest using a close sized drill to the tapping drill on the front of this tap. The cut is good, but not so sure on how they would react if they got stuck. Use plenty of cutting fluid or suitable oil to clean and cool.

Works as advertised

Great

Did the job perfectly

Very good

Good value ....not any problems so far

Not used yet but look good quality

I like the idea of HSS tapping bits but JTENG have chosen too weak material although coated in titanium...Made 3 holes in soft metal (see picture) and it snapped in 4th one