Review on 🔩 Precision Metal Jobber Twist Drill - 5.2mm Diameter for Professional Drilling by Philip Latham

Best value for money. These little bits are amazing, I use them to drill pilot holes in 1/4 gauge mild steel with a cordless drill and they just keep going. I easily do 30 holes before they slow down and I don't use lube. As long as you keep the drill straight and move slowly and let the drill cut you will be impressed.