Terry Olsen from QR Industries in Arlington, WA wrote to Josh Robinette our Distributor from Cutting Tool Control, Inc. from Seatle, WA the following:
I used a 5/8” x 8” MAQ bar with a CCMT head. I used it on a 15-5 job boring a .830” hole out to .940” and the bore was 6.8” deep. I clamped the bar using a split bushing. I ran the bar at .015” DOC, .008” IPR, and 600 SFM. Terry’s comment was “I thought for sure I would hear something when the insert hit the cut, but it was quite the whole time and left a good finish. I normally wouldn’t have quoted this type of job because of the deep bore.”