This machine should be used wet if at all possible, but may be used dry if necessary. If using wet, there is a hose attachment on the base of the unit; a flow rate of approximately 1/2 gallon per minute is recommended. If using dry, there is a vacuum attachment to suck up dust created by grinding. Dust mask and eye/ear protection is recommended.
One Set of 3 Double Dyma-Dots is required for use, available in 18, 30, or 70 grit. Please inquire for more details on Dyma Dots.