I agree....lathe is best and especially if you have a taper attachment to correct for any taper you may get. How big of a boring bar do you have and how big of one can your machine hold? I've got a beautiful, never yet used solid carbide 5/8" bar and a steel 1" bar that I'd be happy to ship out for you to use. I could have one of these in the USPS Priority Mail tomorrow for you to have probably by Saturday.
Pick one and it can be on it's way in the morning!
![[Image: IMG_1251-r.jpg]](http://img.photobucket.com/albums/v466/kenm10759/Dads%20shop/IMG_1251-r.jpg)
That 3/4" one in the middle with the 55º insert has a minimum bore of 1.250" if that one appeals to you. The 1" one (second from bottom) uses a CNMG43x insert and has a 1.260" minimum bore. The 5/8" solid carbide one that uses old TPG221 inserts (just above the 55º one) has a minimum bore of .812".
The bottom one is a 1-1/2" bar that wouldn't fit without a VEERY oversize bore resulting!
Pick one and it can be on it's way in the morning!
That 3/4" one in the middle with the 55º insert has a minimum bore of 1.250" if that one appeals to you. The 1" one (second from bottom) uses a CNMG43x insert and has a 1.260" minimum bore. The 5/8" solid carbide one that uses old TPG221 inserts (just above the 55º one) has a minimum bore of .812".
The bottom one is a 1-1/2" bar that wouldn't fit without a VEERY oversize bore resulting!