Round steel wire bead reamer is 1mm wide with a 3-5/8 inch diamond-dusted tip to straighten drill holes, as well as smooth out rough holes and edges on most materials including stone, glass and ceramic.
To use, insert one end of the bead reamer in a saw frame, slide bead onto the wire, then secure the free end of the wire in the saw frame. With two fingers, move bead back and forth on the wire to enlarge the bead hole. Not intended for use by children. Wearing safety glasses is recommended when using this product.
Reamers>H20-3234TL>Tools>Jewelers Tools>Reamershttp://www.firemountaingems.com/itemdetails/h203234tlH203234TLBead reamer, diamond-dusted steel, 5 inches. Sold individually.//image1.fmgstatic.com/images/p3234tlb.jpg5.325.32As Low As $2.18 per tool