Clan Street cover 21 64 drill bit to mm Daddy Slum Requirements
21/64" Dia. x 10 mm Shank x 47 mm Flute Length x 89 mm OAL, 3xD, 140 Degree, TiAlN, 2 Flute, Coolant Thru, Round Solid Carbide Drill Series/List #5601 MT9398764 - First Industrial Supplies
Sutton 21/64" x 117mm HSS-Bright Jobber Drill Bit - VIPER D1050833 | tools.com