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

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 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 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

This three tap set could be very useful however the set was supposed to include a taper, plug, and bottoming tap. The set I received included two taper and one plug tap. No bottoming tap was included.

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

Machining brass these work great. These taps do not list the H value for pitch size, example H1 is .0005 inch over nominal pitch diameter each value add .0005 inch. Most taps are made at a H2 or H3 value. These seem to be H3 work very nice and you cant beat the price. These are 4 flute, hand taps, tapping block is recommended, get any tap sideways and good bye tap. The shank diameter is above the minor diameter so thru tapping past the end of thread is not possible, you would need a special taps for that, this is not it. Nice tap set great for hobby work, professionals dont guess at pitch sizes.

Just what I needed.

Always a great product. Never had any issues. Keep em lubed.

I needed a tap that would thread deeper than the shank. The ones in the illustration would do that. The 1/4-20 taps that were delivered will not. That said, these taps are nicely made and should work well for a lot of applications.

Good HSS taps for us