Drill America DWTT1/2-13 1/2-13 Carbon Steel Taper Tap (Pack of 1), DWT Series, Uncoated (Bright)

Would not retap nut but it may not be taps fault this was a special type nut, keeping anyway for what ever I may need a big 1 1/4 tap for. Nicely packed in its own plastic box.

I really wish they could have been supplied in high speed steel, instead of carbon steel. I tap some tough materials, and I have concerns how long these will hold up.

Fast Prime delivery and solid unit. Thank you

Works great for the price

This procuct met all of my expectations and was useful in the application I needed it for.

My first/only use of these so far was to tap some holes in brass, drilled about 1-1.5 inches deep down the length of 2 brass rod (so the holes were not through-holes, and required bottom tapping). These got the job done with no fuss. Mileage may vary on harder metals, but I had no problems getting these holes tapped perfectly in brass with these taps using a little cutting lubricant (did them slowly by hand). For the money, I felt it was good value to get all 3 varieties.

The bottoming tap cutting edges were not formed properly or were rolling over.

I used this to chase threads in blind holes in an automotive cast iron housing prior to reassembly. It did the job I needed and after waiting for more than two weeks for the local hardware to obtain one of these taps, I had this one through amazon to use in two days for slightly less cost.

rare size tap, did what i needed it to

I expected a cheap tap, given the price, but this 1-8 tap still disappointed me. I used it to chase an already threaded hole in cast iron, way down in a deep well. It would not fit in my Lisle tap socket. The nominal spec for the flats on a 1 tap is .600; I measure my other 1 taps at .595+-.001. This one was .603 one way and .602 the other; too big for a tap socket. I had to mutilate it on a belt grinder to get it to fit.