High Speed Drilling Attachment for Mill or Lathe

摘要

From time to time, I adventure into the black art of making steam injectors. I've had some success with the larger 24-ounce size but I've struggled with the smaller sizes, mainly with drilling the small 0.5mm holes, my lathe just doesn't have the speed range to cope with these small and expensive drills that break all to readily, what's needed is a high speed drilling attachment.