Centre holes serve as the primary locating surface for machining operations. They ensure that rotational axes are consistent, reducing radial runout and allowing for high-precision finishing. 2. Key Forms of Centre Holes (GOST 14034-74)
The standard defines several forms, each designed for specific manufacturing needs: Standard 60° centre hole without protection.
Understanding and adhering to is essential for quality control in manufacturing environments that utilize lathes and precision machining.