MIBRO 6.5 mm X 4-1/8 in. L High Speed Steel Metric Drill Bit Round Shank 1 pc - Ace Hardware
CoCud Extra Long Twist Drill Bits, 6.5mm Drill Bit Diameter 160mm Total Length, High Speed Steel Twist Drill Bit - (Applications: for Hardened Metal Woodwork Plastic Aluminum), 6-Pieces - Amazon.com
SGS 66641 | 6.5mm Diameter x 8.0mm Shank x 76.0mm LOC x 114mm OAL 2 Flute TX Coated Screw Machine Length Drill Bit - All Industrial Tool Supply