MetalworkingFun Forum

Hi

Lads
I was given this boring head today
Any ideas on a R8 spindle / mandrel for it
I can always make one
The centre hole is 40 mill







Regards
John

John, I'd be tempted to buy one of the many R8 threaded adaptors available for boring heads, and just make a plate with the appropriate PCD holes drilled in it

http://www.rdgtools.co.uk/acatalog/BORIN...HANKS.html

like Awemawson said buy a threaded arbor and make a plate

I have a spare R8 to a Jacobs taper I will modify that
It is a nice looking boring head
John

I hope it's one of the beefier Jacobs tapers then - that looks to be quite a chunky head !

I will turn off the taper then ether thread it & screw it in.
Or press fit and weld .
Most likely both .
John

Press fit , weld , bolt and rivet John , take no chances    Will make a good video topic too  
  Cheers Mick.

(12-07-2014, 05:42 PM)doubleboost Wrote: [ -> ]...
It is a nice looking boring head
John

And big.

Ed

Well said Bob