
■Table of recommend centering condition.
| Work | Soft structural steels | Carbon steels | Alloy steels | Stainless steels | Aluminum alloy casting |
| material | |||||
| Cutting speed | |||||
| Diameter | Revolution Feed per revolutio | n Revolution Feed per revolution | Revolution Feed per revolut | ion Revolution Feed per revoluti | on Revolution Feed per revolution |
| Work material | Soft structural steels | Carbon steels | Alloy steels | Thermal refined steels | Stainless steels | Aluminum alloy casting |
| Cutting speed | ||||||
| Diameter | Revolution Feed per revolution | Revolution Feed per revolut | ion Revolution Feed per revol | ution Revolution Feed per revolution | Revolution Feed per revolut | ion Revolution Feed per revolution |
| Work material | Soft structural steels | Carbon steels | Alloy steels | Thermal refined steels | Stainless steels | Aluminum alloy casting |
| Cutting speed | ||||||
| Diameter | Revolution Feed per revolution | Revolution Feed per revolut | ion Revolution Feed per revolu | tion Revolution Feed per revolution | Revolution Feed per revolut | ion Revolution Feed per revolution |
type
1. Above condition done by Water Soluble oil. 2. 20% lower feed is recommended when centering prosess to inclined plane. 3. 20% lower feed is recommended in the case of long shank point drills. type