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  1. smoggyrich

    Reconditioning drills

    Thanks for the replies. Some helpfull ideas there. here's a bit more info that may help... we are using 10 and 12mmm dia TiN coated drills. we are peck drilling forged chromium steel (46Cr2n) using coolant. Drill depth is upto 100mm deep. we are running at 650rpm and 0.2mm/rev feed rate...
  2. smoggyrich

    Reconditioning drills

    Hi everyone. I'm new to the forum and I am hoping to pick your brains for a minute. My problem is, is the ammount of drills we are going through. We are using Guhring tin plated drills to machine forged steel. We have a drill grinding machine, but the reground drills are obviously not...

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