Replacement head for the Diamond Bead Reamer. Can also be held in a pin vise or Dremel for reaming. Use with cutting lubricant to make reaming easier.
Total length on this bit is 2". The diamond coated section is 7/8th" and it tapers from 2mm thick to .5mm thick.
Great for making holes punched in blanks just a little bigger!
Use it for drilling holes out a wee bit bigger. Goes well with my Dremel.