How To Counter Bore?

[DaveH]

Ed,
If you have parting off tool you could use that, start in the middle and work out. It might just have enough clearance to do it.

DaveH

[DaveH]

Ed,
I thought you had bought some indexable boring bars?

DaveH

[krv3000]

hi well this is one way that i do it just put a slot drill in the talestock and go in

[DaveH]

Ed,
Just plunge the boring tool in near the outer dia and move the tool towards the centre. A few thou at a time.
Now what am I missing here

DaveH

[EdK]

(06-05-2013, 05:26 PM)DaveH Wrote: ...Now what am I missing here

DaveH

Probably nothing. I was just looking for advise on ways of getting the job done.

Ed

[TomG]

Since dallen is flaunting his tiny boring bar, I may as well jump in with a pic of one of my smallish end mills. It's a .005" diameter carbide end mill that I used to mill a .012" square pinhole in a piece of brass for an optical application. Those are .010" graduations on the scale.

Tom

[DaveH]

Now that is what one calls tiny

DaveH

[Mayhem]

So that is what dallen needs to mill the minute hand he is missing...

[EdK]

(06-05-2013, 10:13 PM)TomG Wrote: Since dallen is flaunting his tiny boring bar, I may as well jump in with a pic of one of my smallish end mills. It's a .005" diameter carbide end mill that I used to mill a .012" square pinhole in a piece of brass for an optical application. Those are .010" graduations on the scale.

Tom

In certain company, flaunting smallness is not a good thing.

[tekfab]

(06-06-2013, 12:17 AM)DaveH Wrote: Now that is what one calls tiny

DaveH

That wife of mine gets everywhere !