Where the above conditions do not exist, the Roll-a-Finish® tool would generally be the tool of choice, for two reasons:
- The relatively wide adjustment range of the Roll-a-Finish tool, which is typically .040 inch (1.01mm), and
- The ease of adjustment, with the castellated adjusting collar on the Roll-a-Finish tool.
The Bearingizing tool features a greater number of rolls, and rolls of a smaller diameter, as compared to the Roll-a-Finish tool, and can only be adjusted by change of rolls. The Bearingizer also requires a closer presize than the Roll-a-Finish tool.
Where the above conditions do exist, the Bearingizing tool should be considered. While the Roll-a-Finish Tool increases surface hardness by about 5 to 10%, Bearingizing increases hardness by 10 to 30%, but with less surface penetration.