Video in which I show how to make the threads with the taps of cutting.
History:
Taps for making threads
I'm going to make three threaded holes...
Two with exit hole and one without exit hole
Thread 8 x 1.25: To determine the diameter of the hole we have to drill ...
We measured with the caliber the finest tap of the set a little more behind the tip
6.8 me indicates the caliber (as I do not have the drill bit 6.8 I will make a hole of 6.5)
If it gets very hard, we will pass the next upper drill bit we have
The ideal would be to make the hole with the diameter indicated by the manufacturer, here I show you how to make the thread with limited means
It is very important to practice the hole as straight as possible
Also, it is key that the first tap we pass it very straight
Lubricating the tap with oil greatly facilitates the work
Tap Nº 2
Very smooth when passing the next tap (it locks a lot)
If it is inclined or badly threaded do not insist, remove the tap and restart
Tap Nº 3
14x2 thread
The caliber indicates 11, 6 (the manufacturer recommends 12)
I will make the hole with the measure of 11.5, there is a little room for maneuver
To make this thread I will use a normal wrench
Turning the male with a normal wrench has a high risk of tap breakage
Tap Nº 2
Tap Nº 3
14x2 thread without outlet hole
Two important notes when making this type of threads
Lubricate a lot (with oil) and remove the male from time to time and remove shavings
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