Conventional drills are not always accurate on curved surfaces. They often slip and do not center easily.

The Dormer A002 split point drill centers easily first time. Also, it centers when the approach angle is not square.

A002 HSS TiN Tip Coated Jobber Drill features & benefits:
- Split Point
- Advanced Ceramic Coating
- Exceptional accuracy
- Easy centering
- No pilot hole required

https://www.dormerpramet.com/es-es/products/hole-making/solid-drills/general-purpose-jobber-length-drills?country=es