100 degree reverse countersink

[Go Navy]

Good Afternoon Everyone

 

I am looking for information about 100 degree reverse countersinks. I have a .1285 hole that needs to be countersunk on the back side to .217 dia and my slot is .525 wide (room for the reverse countersink) I can by a standard revese countesing (the one you put on by hand on the rod) but I was wondering if there were any other ideas floating around.

 

thanks in advance for the help

Al

[Guest CNC Apps Guy 1]

You could always use a dovetail cutter and just contour the underside.

[maestro]

Check out this link.

 

http://www.cogsdill.com/pdf%20files/US%20Flipcut.pdf

[Go Navy]

Thanks for the great advice the dovetail idea sounds interesting will have to mull that one over. the flip cut tools was exactly what I was looking for but, they don't seem to make one small enough..

 

thanks again

Al

[Guest CNC Apps Guy 1]

Or a Double-Angle Cutter may do the trick even better giving you the untimate in flexibility ...

 

Search on McMaster-Carr for Double-Angle Milling Cutters.

 

HTH

[Mick]

Those flip cuts are are dodgy. We have several of those, we use for backfacing on some large castings. If they stick when out, and then it retracts, you can imagine what happens...

 

We have a bin of those heads all mashed from when they snap off from withdrawing whilst still extended.

[jeff]

These guys have a good selection:

Brown Tool