Diy tap m16x1lh

I’m quite new to this forum but i have Some experience in machining and toolmaking.
Have got a 350/750 lathe, 2 rong fu like machines ( one geared, one beltdriven, a 210x210 bandsaw with miter option and a A-C/dc tig.
Well, enough showing off....

Machining is my hobby so i’m always looking for “chores”
To help a friend out i needed to tap m16x1lh thread in aluminium.
These things are quiet expensive so i thought i’d have a Go at making one. Heated iT in the grill with charcoal and airpressure hose.
Cuts beautiful.....didnt know this was so easy to do.
Cant post any pics because im operating on iOS



https://youtu.be/e1wxU-QTqds
https://youtu.be/ZKP_HQbaCao