Exact 74650 Spiral Drill Bit Diameter 5.0 mm HSS-E Co8 DIN 338 Form C Type VA - - Amazon.com
BOSCH CO2157 15/32 In. x 5-3/4 In. Cobalt Drill Bit - - Amazon.com
Ruko Terrax HSS-G Spiral Drill Bits 12.2 mm Pack of 5 in Plastic Pack - - Amazon.com
Amazon.com: 99 Pieces Twist Drill Bit Set Titanium HSS 4241, 135° Tip High Speed Steel, Size from 1/16" up to 3/8", Ideal Drilling in Wood/Cast Iron/Aluminum Alloy/Plastic/Fiberglass, : Industrial & Scientific