The belt is typically 120 grit, and disk is 80. The disk cannot be changed, as the adhesive backing is single-use only. The belt can be changed if you require a different grit. Please remember to return the lab-owned belt when you're finished. | The belt is typically 120 grit, and disk is 80. The disk cannot be changed, as the adhesive backing is single-use only. The belt can be changed if you require a different grit. Please remember to return the lab-owned belt when you're finished. |