Which Type of Abrasive is suitable?
Almost any dry abrasive will work with the CNC Autoblaster. What you are using now to engrave stone will work. Most Masons use Garnit or Aluminium Oxide and both work fine.
What is the best Grit Size?
We normally recomend around 40grit and 100 grit. Some say that 40/60 grit mixture is an ideal mix for cutting stone.
How much Abrasive should you put into the SM-Pro SandBlaster?
The tank capacity is 50kg so two 25kg bags can be put in at one time.