- Accuracy for center inner diameter guaranteed to 0.003 - Accuracy after point locking guaranteed to 0.005. - Excellent for engine lathes and CNC lathes. - Heat-treated point to HRc 60±2. - The interchangeable center points are standard point, 75˚point, 90˚point, extra-long point, pipe point, and female point. - Because of the insert centers, the admissible workpiece weight is reduced.