Grade determines the final finish of the product.
- Fine (FIN) grade abrasive wheels are used on small contact areas, and don’t remove much material, to prevent undercutting. They are good for when the final finish is critical. 180-240 Grit.
- Medium (MED) grade abrasive wheels will remove more material, with a larger contact area. 100-150 Grit.
Density refers to how tight the construction of the wheel’s wrapping is. The lower the density, the more the wheel will conform to the workpiece, and leave a more uniform finish. Higher density wheels will last longer, and are for tougher blending and deburring jobs.
- 8 – softer, conformable, for finishing and light deburring.
- 9 – harder, for light to medium deburring.
NOTE: Wheels are unidirectional; only use in the indicated direction. DO NOT EXCEED THE MAXIMUM OPERATING SPEED OF THE TOOL [RPMX]!