ECM Stainless Steel Grinding Gear Overview Designed for added practicality and flair, the ECM Stainless Steel Grinding Gear offers a stylish replacement for your ECM grinder's grind adjustment gear. This upgraded gear is heavy, and features legible reference numbers and fine-coarse indicators for easier adjustment. Compatible with the ECM S-Manuale 64, S-Automatik 64, and V-Titan Grinders