Gallery, Projects and General > How do I??

trepan tool?

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celsoari:
Hello friends, does anyone have experience in building (DIY) the trepan tool (drill)?

WeldingRod:
I've got a val-cut and I've also ground tools to do it.  VERY useful!
Do you need photos?

Sent from my SM-G892A using Tapatalk

BillTodd:
Here's a few pictures of a carbide trepanning insert , they may help with the cutting geometry.

Joules:
Bill, does that tool have a tendency to dive towards the centre of the hole ?  Quite aggressive rakes on the tip, something I should really have a play with, what are the tip dimensions hard to judge scale from the pictures.

mattinker:
Celsoari,

How big a trepanning tool? https://www.youtube.com/user/userwl2850 does some amazing deep hole drilling!

Regards, Matthew

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