HHIP 1011-3245 1-1/2-11-1/2 NPT HSS Taper Pipe Tap
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Questions & Answers
This is a 70mm film. In the handle where the tap inserts, 185" is measured halfway up the shank.
It is recommended to use spiral design on stainless steel, TiN coating is the best method
Selected User Reviews For HHIP 1011-3245 1-1/2-11-1/2 NPT HSS Taper Pipe Tap
I received one that is TiN coated, and it appears to be well made. To date, I have only used it to tap into plastic 3D-printed parts, but it is working well for this purpose.

The tap is super sharp. The thread is super cleanly cut. Using 6061T6 aluminum for power tapping, I tapped 8 holes. Tapping still looks and cuts like it just came out of the box.

In my project to build a 292 GM inline motor, I used it to tap out the heater hose outlet. I think it worked well. I am not usually a buyer of import tools, however the price was right.

A total of 38 holes had to be drilled This worked well for what it was designed for.
