Comparison : Item # D41157516, 3 Flute (Straight Shank) HSS Core Drills, Fractional Sizes (Imported)
Item # D41157518, 3 Flute (Straight Shank) HSS Core Drills, Fractional Sizes (Imported)
Item # D41157520, 3 Flute (Straight Shank) HSS Core Drills, Fractional Sizes (Imported)
Item # D41157522, 3 Flute (Straight Shank) HSS Core Drills, Fractional Sizes (Imported)
Item # D41157524, 3 Flute (Straight Shank) HSS Core Drills, Fractional Sizes (Imported)