1pc 2.5/3.5/4.5/5.5/6.5mm HSS Drill Bit Extra Long Twist Metal Bits 160/200/250/300mm Hole Saw Plastic Wood Hole Opener - AliExpress
TOP EOD-6.5 Hexagonal Shank Cobalt Drill for Electric Drills, Drill Diameter 0.26 inches (6.5 mm), Drill Bit, Tsubamesanjo, Made in Japan: Amazon.com: Tools & Home Improvement
13pcs 1.5-6.5mm 1/4 Inch Hex Shank High Speed Steel Twist Drill Bit Set - Amazon.com
6.5mm x 360mm (300mm cutting) SDS Plus Bionic Pro Drill Bit (Part 28085 3) Pack of 1 - Home - Swiftfix