The agate burnisher is a must-have in your metal clay tool box. Use it shine your pieces to a mirror-finish. The tip is small enough to fit in small spaces, while the edges burnish larger areas with ease.
The agate burnisher can be used to burnish metal clay after firing, but is especially useful for the keum boo technique of applying gold foil to silver. Sturdy wood handle stays cool while burnishing at bonding temperatures.