Dormer 7625076 FORCE M R463 High Performance Standard Length Jobber Drill Bit, 12.7 mm Drill - Metric, 0.5039 in Drill - Decimal Inch, 140 deg Point, Carbide, TiAlN Coated | Turner Supply
CNC Drill Bit 4-Flute RH Brad Point Carbide Tipped 12.7mm - CNC-Tool.com
DORMER - Jobber Length Drill Bit: 12.7 mm Dia, 130 °, High Speed Steel - 79768776 - MSC Industrial Supply
6-12.7mm HSS Square Hole Drill Bit Square Auger Mortising Chisel Drill Set Sharp Mortiser Drill Bit DIY Furniture - AliExpress
LETON 1/2" M35 Cobalt High Speed Steel HSS Twist Drill Bit for Steel, Iron, Copper, Aluminum, Pack of 5 (12.7mm Diameter) - Amazon.com
Hitachi 1/2" (12.7mm) 135 Split Point Drill Bit w/ Self Start Point | eBay