Drill bit sizes - Dimensions chart for TTP HARD cobalt drill bits
WIDIA, 31/64 in Drill Bit Size, 13.00 mm Shank Dia., Extra Long Drill Bit - 431F09|TDD105Z12304 - Grainger
31 64 Drill Bit|tungsten Steel Carbide Drill Bit Set 0.5mm-7mm, Spiral Flute For Metal
Precision Twist Drill 040031 | 31/64" Diameter 3-11/16" OAL 118 Degree High Speed Steel Bright Finish Screw Machine Length Drill Bit - All Industrial Tool Supply
Michigan Drill 208B Series High-Speed Steel Extra Long Drill Bit, Ground Finish, Round Shank, Spiral Flute, 118 Degrees Conventional Point, 31/64" Size (Pack of 1): Amazon.com: Tools & Home Improvement
Milwaukee 48-89-4628 Titanium Impact Drill Bit 31/64" - Hartmann Variety
Bear Tooth Woods - 13.3mm Drill Bit - El Grande | Churchill | Cambridge
Milwaukee 48-89-2228 Titanium Drill Bit 31/64" - Hartmann Variety