OSG A Brand ADO-TRS: 3-Flute Carbide Coolant-Through Drill

A Brand® ADO-TRS is an Advanced Performance High Feed 3-Flute Carbide Drill. Patented geometry permits stable chip ejection, even with less chip pocket space inherent in 3-flute drills. The result is up to 3X faster than 2-flute drills and up to 3X longer life.

[@William97864]

These are the best drills out there, by far fastest and longest lasting

[@belindacrafton1354]

How do you sharpen it