Handy tool any one made one?

[winchman]

https://www.biggatortools.com/tap-guides.html
Very good idea, I assume if you made one you would drill the hole slightly below the clearance size?

 

[Maker]

DoubleBoost made something similar:

See it in use around 7:40

 

[winchman]

Thanks

 

[hareng]

Will work in a fashion only on flat surfaces, subject to the clearance through it can still be way out.
Luckily I pretty good with the eye.