Drill America - DWT57129 1/4-20 High Speed Steel 2 Flute Spiral Point Tap, DWT Series

This tap held up and did not break when using. I had broke two other brand taps and this tap held up and did not break while using it on aluminum.

I am very impressed with this tap and handle. I could not believe how much easier it was to cut threads using this setup. I had to keep reminding myself to use oil because this tap would cut decent dry even in 1/8 plate.

1/4-20 two flute spiral point taps were too brittle and with too small a cross section to successfully tap a 13/64 hole through 1/4 thick mild steel bar without breaking using a hand tapping wrench and cutting oil. Broke both taps I bought in the same hole (first one I tried them on); could not apply enough torque to cut to full thread depth before the tap broke. I was very gentle with the second tap and kept backing it out. Didnt help. At least the deep flutes allowed me to twist and break up the tap remnant left in the hole with needle-nose pliers. Crumbled like glass. Was able to successfully tap the holes with a US brand four flute taper tap easily.

this tap bore out several taps in aluminum almost to the nuts and even the last one felt like butter. itll make you wanna drill extra holes just to tap them, its that good. steal this companies money LOL, these things are worth 3 times the price they charged me

As described, works well.

Put threads in a piece of metal

I needed to tap a piece of metal on my shower valve. This tap, along with the handles I bought separately, did the trick. This was a hand tap. But it says its suitable for high speed tapping. Maybe Ill try that, too.

I threaded about 5 inches of hole before she got slow. Was able to touch up with angle grinder a few times and get another 5 inches of tapping. I was impressed that the tap didnt require much backing up to break the cutting, was able to drive ahead for many turns at a time.

Working in an elementary school, I discovered that the adjusting screw for desk legs that had been used werent really the right size. Turns out there was no right size, but this tap made short work of producing a tapped hole that perfectly fit the available screws.

Works great.