SGS 52318 | #27 x 0.25" Shank x 1" LOC x 3" OAL 2 Flute AlTiN Coated Jobber Length Drill BitFeatures: Double margin design improves accuracy and surface finish along with increased strength for aggressive drilling Specialized selfcentering notched point eliminates the need for spot drilling decreasing thrust and deflection Engineered edge protection improves edge strength and reduces edge fatigue allowing for increased feed rates Recommended for materials 56 HRc ( 577 Bhn) Product Specifications Wire Diameter #27 Cutting Diameter (Inch) 0.