Drill America 1/4"-20 UNC High Speed Steel Tap Set

I have only used this set once so far, but that's all I really hoped to get out of it. I have an aluminum AeroPrecision lower that came to me with a stripped or poorly threaded takedown pin mounting hole, which takes a 4-40 setscrew. I used the bottoming tap in this set and a little oil to successfully re-tap the mounting hole. These taps are tiny and any tap handle you already have will likely be too big. You need what is called a pin vise, basically a handle with a small collet on the end, to hold these small taps. These taps saved me a whole lot of hassle, dealing with returning a serialized item for warranty work. They cut quickly and smoothly, at least in aluminum. Worth every penny, even if I never use them again. Besides, what real man has ever said "I wish I had less tools?"

I think 1/4-20 is my most-used tap, and I probably average 20 drill & tap holes a year. I’m not a professional machinist, just a home hobby guy. These taps have worked fine. I’ve yet top break one or wear one out. These are easy to use, wear well, and work as they should.

Got the set. Comes with a taper, plug, and bottoming tap. Cuts decent treads.

A solid , reliable option for general threading work. It includes the full set (taper, plug, and bottoming taps), which makes it versatile whether you’re starting threads or finishing blind holes. It works well on common materials like steel, aluminum, and brass, and can be used by hand or with a machine. The high-speed steel construction gives it good durability and wear resistance for regular shop use, and it cuts threads cleanly when used with proper lubrication. Installation and use are straightforward, especially if you’ve used tap sets before. The reason for 4 stars instead of 5 is that it’s more of a general-purpose set—not quite at the level of premium industrial taps for heavy or repeated high-load use. It gets the job done well, but you may notice faster wear if you’re using it constantly on tougher materials. Overall, it’s a dependable, budget-friendly tap set that performs exactly as expected for most DIY and light-to-moderate professional work.

Works as expected

had to tap a honda crank pulley worked just fine

Decent tap set. I got a little greedy and broke one but no big deal. Cut really good and they have lasted through a lot of holes.

The tap set (I ordered #8-32 3-piece set) arrived promptly. It was nicely packaged and appeared to be of good quality. The cutting surfaces were sharp, and the taps nicely finished. I used them to tap several blind holes in brass, and they worked just fine. Other reviewers have complained that they are flimsy and not durable, but I certainly didn't observe that. They seem just like any other tap I have used in the past. I'd definitely recommend them.

Great quality item!

Broke several brand-name taps when tapping into railroad spikes for a small DIY project, but those held on. Positively surprised.

Parts had a coating that looked like rust, but isn't. Good tools, they work fine. Great delivery, I am happy!

super

Set included 1 taper and 2 bottom taps, no plug tap