STM Canna Revolution Grinder 2.0STM Revolution Grinder: The World's Most Efficient Commercial Shredder The STM Revolution 2. 0 is the brand new follow up to the worlds most advanced commercial grinder. No plastic whips, meat grinders, blenders or flour mills that heat and pulverize months of your hard work. Chosen by small craft cultivators and start ups up to the largest brands and facilities around the world, the STM Revolution is an asset that grows with your business, allowing