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

I bought the set to chase some threads and finish threads in a blind hole. They worked great and cut new threads easily. I only used the taps for one hole, but they are still sharp and show no signs of damage.

havent used them much but they work as expected and have not broken yet.

Im a machinist by trade. I cant say how they would hold up in a commercial setting but in my home shop environment they worked very well.

I needed a reverse tap to adapt a weed cutter to work with fixed blade modification that replaces the string assembly. The kit used a 3/8 reverse bolt to attached the blades. Once I received the tap, I was able to cut threads required by the bolt. Worked out well. Have used the weed cutter several times and the bolt has not come loose.

Arrived in good time, and used in Aluminum material tapped gave a great thread.

Used it the first second I got a chance with proper cutting fluid. Extra careful 1/4 turn and back out a little to break the chips. Broke off inside of the hole.

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

These are not high speed taps, so if you put them in your cordless drill to tap a number of holes, there is a good chance youre going to break at least one. I guess thats why they come in 3s.

The picture show when purchased them 3 different type of tapes. When I received them they all dead front or bottom type tapes. All are 5/8X11.

Great for the money.