Drill America 3/8-16 UNC High Speed Steel Tap Set

I have bought products from this company before and have been satisfied with their products. With this product the diameter of the shanks was pictured as the minor thread diameter. The set arrived and the diameter of the shanks was the major diameter of the threads. This means that you cannot tap a deeper hole than the cutting length of the tap. This was contrary to Top Dogs question that was answered in 2020: Q: are the 1/4-20 taps like the web page picture, or like the customeer picture. In other words is the shank smaller than the minor diameter? A: As pictured By Top dog on December 7, 2020

I needed a bottom and plug tap for 8-32 metal/jewelry working and it took awhile to get all 3 types in one item and purchase price separately was not as good as this offering. They look perfectly all right, so it was felicitous.

I had purchased these taps to clean out Frame Rail Weld Nuts in a 16 year old car. A lot of rust and road grime. The purpose was the installation of a new trailer hitch. When they first arrived I was impressed with the nice divided case that they came in. Very convenient especially considering the low cost of the set. That is where the good for this project ends. The first two snapped within minutes of use in the first nut. This was very surprising as I was using a T-Handle Tap Wrench and you cant get much torque with one. Im guessing these either had a bad temper or were from a bad batch of steel because the third lasted for the rest of the project (6 additional Weld Nuts). Next time Ill spend the extra money and get something a little higher quality.

Got a set of two tapers and a plug. Complained and got another set as replacement. Same thing. If you really need a bottoming tap I guess you need to order it separate. Quality was not bad.

Was just tapping aluminum, but did a great job. Had some mounting bolt threads that stripped on a Kohler engine. I drilled them deeper, and tapped with this set. The bottoming tap gave me a few more threads to screw in to.

Product came fast and they were packaged well. Nice set of taps. Perfect for what I needed.

Great addition for the hobbyist, starting and bottoming taps included.

product as described

Did the job.

Had no problem tapping a through hole in stainless steel. Use lots of oil (even cooking oil is OK).