- The best drill blades specially for modeling and focusing on function to use with pin vise.
- The best length for using with pin vise.
- Smooth cutting obtuse angle edge.
- Obtuse angle Drill Bit drills smoothly, not shaky, and easy to drill almost perfect circle.
- Drill Bit set of 8, 1.1/1.2/1.3/1.4/1.6/1.7/1.8/1.9mm diameter.
