End pin reamer, 5 degree

These special wooden-handled steel reamers are designed to properly taper the holes for guitar end pins. They're semi-fluted, to help keep the holes round. This 5-degree reamer tapers from approximately 6mm (.235") to 10mm (.395"). It works for vintage-style pins, as well as modern Martins and similar tapered pins. (Slightly) cheaper versions can be found, but these are the best way to ensure accurate fitting. Please note that handle wood and colour may vary.