BOSCH BL2168 1-Piece 41/64 In. x 6 In. Fractional Reduced Shank Black Oxide Drill Bit for Applications in Light-Gauge Metal, Wood, Plastic - Straight Router Bits - Amazon.com
Michigan Drill 600 Series High-Speed Steel Screw Machine Length Drill Bit, Uncoated (Bright) Finish, Round Shank, Spiral Flute, 118 Degrees Conventional Point, 41/64" Size: Amazon.com: Tools & Home Improvement
Drill America 41/64 in. High Speed Steel Twist Black and Gold Reduced Shank Drill Bit with 1/2 in. Shank KFDRSD41/64 - The Home Depot
KnKut 41/64" Fractional Short Stubby Length Drill Bit