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

I love the different coarse of cut on each tap. Cut straight through solid steel and each finer tap made a clean cut for my bolts to snug up into.

There 1/4 20 but there a cheap tap so be carful not to make a bad job even worse with them.

These taps were marked HSS and 12-24. There were no other markings for either manufacturer or country of origin on either the taps or the packaging. Are they counterfeit? Who knows? The good news is that they do have the correct pitch and diameter and at least cut in soft metals. These are quite inexpensive taps, so this is probably a reasonable deal for incidental use. They worked fine for the thread cleanup that I have done, but I would probably not use them in production.

Used for threading bored out delrin rods. Worked great. Excellent results.

I spent over 10 years in a machine shop and can say these are legit taps. Not the cheap carbon ones...these are HSS and ground well. True gun tap, bottom tap and plug taps.

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

I was able to tap into a harden shaft with this. Did it very slowly and a lot of cutting fluid.

Performed as expected.

I used this set to tap threads into a 1 deep hole that bottomed out in a piece of stainless steel. Used all three taps starting with the taper and ending with the bottom tap. All three cut through the hard stainless steel with relative ease and achieved smooth threads all the way to the very end of the hole. So far have done just the one hole and taps look pristine and ready for more. The plastic case they come in is also handy for storage.

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.