Under the Power Tool registration link:
Register the grinder under model R86040B.
The RIDGID "Dashboard" registration system requires the correct product model number to be entered when registering. With individual tools like saws or sanders, you will need to use the base model number for that product from the serial number data plate on the tool. Drill kits and combo-kits use the model number for the kit. Combo-kit items are not to be registered individually, you have to register them under the correct combo-kit model number normally found on the card board carton that the kit came in.
In the "Package model number" field, type in the model number and then click the "choose package" link to go forward to the serial number data page where the submit button will then be accessible.
If you require any further information please contact Customer Support at 866-539-1710.