Boring heads for the mill

[f350ca]

Hi the other Dave. I think its a 3 inch I have, where do you measure them? It takes 3/4 boring bars. I use the brazed carbide boring bars, they have to be sharp or you'll get lots of chatter if your boring very deep, ie long bar protruding. I'd be interested if the indexable bars work out, I've thought of trying one but think you'd need inserts with a very small radius to reduce your cutting forces.