The Manual Hone Rough Stone Set supports accurate surface refinement during mechanical service and repair work by allowing controlled material correction inside cylindrical components. It restores proper internal surface condition when wear, scoring, or uneven areas affect performance. It improves contact quality between moving components by correcting surface irregularities. It allows technicians to maintain consistent internal geometry during repair operations.Attributes:• Enables controlled internal surface correction during repair tasks.• Supports accurate diameter refinement for service operations.• Helps remove surface scoring that affects component movement.Applications: The Manual Hone Rough Stone Set is applied during mechanical service and repair processes involving internal cylindrical components. It corrects surface irregularities to restore smooth internal operation and proper component interaction.