Drill AmericaPOU1/4NPTW/DRILL 1/4" Carbon Steel NPT Pipe Tap and 7/16" High Speed Steel Drill Bit Set, POU Series

I am not sure how well the bit and tap would hold up for regular use, but I just needed it for a one-time application (drilled out broken brass pipe nipple and retapped). It worked well (using plenty of oil and taking my time), and it was far less expensive than buying a set of NPT taps that I will probably never have a need for going forward.

I used this to drill and tap an aluminum water pump housing. I know aluminum is not a very tough metal but never the less the drill did great and didn't get gummed up and the tap worked well too. Nice set. I just wish they made a complete set with drill and taps (they only sell a tap set).

Worked like a charm. Used it to drill a hole on my 01 mustang gt intake manifold for the thermostat sensor.

The end of the drill flutes had a small burr, recommend dressing it with a stone (or sandpaper) before using the drill bit. The same for the tap, the cutting edges look slightly rounded.But for the price they are a reasonable quality, and Im only using this in aluminum.The tap doesn't have much lead in taper, if you are using this every day I would suggest a higher quality tool. Oct 2024

First time tapping, having the right size drill bit included made it easy. Cut well

Works great for fixing a messed up pipe threaded block

Used it to fix a broken engine block coolant port on my 1997 Chevy C1500. The old hose coupler snapped and half of the coupler got stuck in the screw hole. I drilled the leftover out and used the tap to get rid of all the stuck threading!

Worked just fine to drill and tap a new air output on my compressor. Package well and came with oil on it to prevent rust.All in all, good price and got the job done.