THIS PAPER PRESENTS THE MOST RECENT ADVANCES IN TECHNIQUES FOR TUBE INSPECTION. TUBE INSPECTION ACCURACY IS ADDRESSED IN TERMS OF VECTOR MEASUREMENT. THE LATEST DEVELOPMENTS IN VECTOR MEASURING MACHINES HAVE RESULTED IN A SUBSTANTIAL IMPROVEMENT IN ACCURACY. THIS PAPER DISCUSSES HOW THIS HAS BEEN ACHIEVED THROUGH THE USE OF RIGID JOINTS, PRECISION SPINDLE BEARINGS, ULTRA-HIGH RESOLUTION ENCODERS, TEMPERATURE COMPENSATION, AND VISIBLE NONCONTACT MEASURING PROBES. THE USE OF STATISTICAL AVERAGING SCANNING TECHNIQUES IS SHOWN TO IMPROVE ACCURACY. A REVIEW IS PRESENTED ON THE TYPES OF INSPECTION ALGORITHMS WHICH CAN INSPECT TUBE SHAPES.