Reversible countersink - GIF

[Altair]

Reversible countersink.




Previously:

Countersink drill bit - GIF
Countersink head screw - video

[hemmjo]

Seems to be more a de-burring tool than a true countersink. But cool if you need to do much if that.

[Bony]

Does anyone know where I can get one of those from ?

[IntheGroove]

Does anyone know where I can get one of those from ?

I bet you could make one at home...

[Bony]

Yes I could, but my list of things I want to do seems to be too long for the time I have available. Retirement is great, but it's too short!

Thanks, I'll put it on my todo list IntheGroove.

[DSTP]

https://www.noga.com/Products/rvcn/R...SIBLE_-_RC2000

[mklotz]

https://www.noga.com/Products/rvcn/R...SIBLE_-_RC2000

Also available via Amazon...

https://www.amazon.com/NOGA-Reversib...s%2C165&sr=8-2

[Ralphxyz]

Even on Ebay https://www.ebay.com/sch/i.html?_fro...sinks&_sacat=0

[Bony]

Thanks Mark & Ralph. I could have looked for one myself, but having now been spoon fed I'm surprised at the cost. If I did make one I would hesitate at drilling a small hole through a small piece of HSS. I think that would be challenging. I have drills that can put a hole through a file but the 3 or 4mm size drill to hold the cutting blade would be costly and fragile and need to rotate at RPM beyond the speed of any machine I have, or contemplate getting.

[hemmjo]

Does not have to be HSS. Take an broken carbon steel drill bit or one of those files you drilled a hole in. Anneal it, forge it flat, shape it, drill it, harden it, temper it.

I know, it all takes time, but it is an option many do not think about.