Review on 🔩 NEIKO 10052A Spot Weld Drill Bit, Titanium Coated High Speed Weld Cutter, 8mm (5/16-Inch), made from Cobalt Steel by Edward Henderson

To the point. First, they are too short to be used in a conventional drill. did it, but with difficulty. Third, they only made 4 or 5 cuts before just spinning and generating heat without cutting. Details: We bought two just in case; The first went through four spot welds with some difficulty and was then unusable. I set the drill to low speed and tried another, but the result didn't improve.