This tool will help you save up to 2/3's of the time setting stones. All prongs are set perfectly even with this tool. All you have to do is screw on the end piece that fits the cup chain you are setting with this tool.
- One hand tool top with four screw on ends
- The four end sizes are 6mm, 8.5mm, 11mm, & 12mm (works with square and round)
- Interchangeable Hand Tool