Made from precision hardened polished steel and this hand roller used to recharges diamond powder on copper, tin/lead or phenolic laps. Adding about 12 drops of extender fluid (Olive Oil) on diamond powder and evenly spread over the surface of the lap. Using the roller, embed the diamond particles into the surface of the lap. When recharging laps use a clean, flat table and roll in straight, overlapping lines, do not roll with the lap revolving. Do not use on metal bonded laps.

Other accessories may required :

1. Copper, tin, zinc, lead or phenolic laps

2. Olive Oil

3. Diamond Powder