Kim,
If you are considering a high-accuracy lab grade machine the LK ULTRA machine (B89 Vol. 0.00013) cannot be beat. From a cost to accuracy & reliability standpoint there is not a machine on the market that can stand up against the ULTRA.
If you are considering a high accuracy shop floor machine the LK G90CS (B89 vol. 0.00024") is the best choice.
Please contact LK (810) 220-4360 for further information!
Brian Samson