DEWALT Drill Tap, UNC, 3/8-Inch (DWADT3816)

Works great for mild steel. 1/8”-1/4” Not sure how it would work on anything else or any thicker. I used it to make about 25 holes an tapped for eyebolts without an issue

Great tap

Best way to drill and tap for the rated material thickness.

I wasn't too sure how well these would work, but I need to tap 12 holes in 1/4 steel pipe and decided to try this bit instead of my old tap set. I was pleasantly surprised how well they worked. I did drill a very small pilot hole because I needed the threaded holes to be in precise locations. The pilot holes were 1/16" and the final tapped hole was 3/8". I think one of the keys may be the drill. I first tried with a cordless drill and had zero luck. So I got out my 3/8" Milwaukee corded drill and this made a huge difference. I would say that after the pilot holes were drilled, I drilled the 12 tapped holes in less than 15 minutes. I completed all 12 without breaking the tapping bit and it is still in good condition. It does require some care in reversing the bit back out of the hole once it is completed. I gave it four stars only because it does takes some care and the appropriate drill to make these work. However, the bit saved me a lot of time and I intend to use them more.

Works and lasts

Worked great. Used it to tap for 4 bolts in my trucks frame. Was sure it would break. But did a flawless job and still in good condition. Great for the money.

It did what it is supposed to do.

Nice concept but unless you are able to hold the drill square to the work you are going to brake this off.I had a feeling this was going to be an issue so I was super careful, was able to get through 3 holes and on the 4th it caught and snapped it off.Using a drill press this would probably not be an issue.