Actually three tools in one. Use this tool to enlarge, de-burr, and round-out bead holes. Three different tips are included to fit bead holes from the smallest up to 5.0mm. The edging point rounds and smooths edges so the beads don't cut through cord or thread. Each tip is coated with diamond dust for smooth, even reaming even in "hard" materials. Tips store conveniently inside the tool and attach to the front for use. Handy spring clip enables you to carry tool in your pocket like a pen. Tips can be replaced so this tool will last you a lot of beading years. Current stock is a tool packaged by Beadsmith. Replacement tips fit all bead reamer handles of this type, handle length is 4.5".
This tool was designed specifically for dealing with those very small drill holes often found in pearls. Reamers can be used to enlarge and smooth out holes.