Description of productsTechnical Information 27. Table of recommend centering condition ■Table of recommend centering condition. HSS (PE-Q PE-90˚) Work Soft structural steels Carbon steels Alloy steels Stainless steels Aluminum alloy casting material Cutting speed Diameter Revolution Speed Feed per revolution Revolution Speed Feed per revolution Revolution Speed Feed per revolution Revolution Speed Feed per revolution Revolution Speed Feed per revolution HSS+TiCN (PE-Q-V PE-90˚) Work Soft structural steels Carbon steels Alloy steels Thermal re ned steels Stainless steels Aluminum alloy casting material Cutting speed Diameter Revolution Speed Feed per revolution Revolution Speed Feed per revolution Revolution Speed Feed per revolution Revolution Speed Feed per revolution Revolution Speed Feed per revolution Revolution Speed Feed per revolution Carbide+TiAIN (C-PE-Q-V PE-90˚) Work Soft structural steels Carbon steels Alloy steels Thermal re ned steels Stainless steels Aluminum alloy casting material Cutting speed Diameter Revolution Speed Feed per revolution Revolution Speed Feed per revolution Revolution Speed Feed per revolution Revolution Speed Feed per revolution Revolution Speed Feed per revolution Revolution Speed Feed per revolution 1. Above condition done by Water Soluble oil. 2. 20% lower feed is recommended when centering process to inclined plane. 3. 20% lower feed is recommended in the case of long shank point drills. Technical-88