... grinding cycles makes this machine especially easy to usel Inside grinder is included in the standard package Standard Equipment for RSM500 ... CNC:GPlus 450 control, Inside grinder,3-jaw chuck (80mm) ,Balancing station ,Truing feature ,Centers , ... RSM1000 CNC and RSM 1500 CNC: Gplus 450 control, inside grinder, grinding wheel dresser,3-jaw chuck 200mm, steady rest, ...