Amazon is where you can buy it.
Bench Grinder Repair and Replacemen. Contains a pair of Eye Shields with built-in LED lights and a rechargeable battery. Screws for the following brands are available. Brands such as Bauer, Porter-cable, Wen, Ryobi, Grizzly and Steel Grip (as well as Hart, Bucktool and General International) as well as the vast majority of other manufacturer. Please take a look at the images.
Because of the price, I gave it four stars. This is an expensive set, in my opinion, but you won’t be able to find anything comparable anywhere else. It was a gift for my father, who was overjoyed.