6.4 mm Dia. x 8 mm Shank 4 mm Flute Length x 79 mm OAL, 3xD, TiAlCN, 2 Flute, Coolant Thru, h6, Cylindrical, Solid Carbide Drill Series/List #NG11 MU061125719 - First Industrial Supplies
19012 Spyder Stinger 1/4" 6.4mm Drill Bit Mach-Blue High Speed Steel HSS 884835008321
SGS 62139 108M Plus General Purpose Short Length Drill Bit, 6.4 mm Drill - Metric, 0.252 in Drill - Decimal Inch, Micrograin Solid Carbide, Bright | Turner Supply
Drill Bit Left Hand 3.2/4.8/6.4/8.0/8.7mm Screw Bolt Remover 5 Pieces/set | eBay