A line of abrasive grinding wheels that grind fast to reduce discoloration and warpage on stainless steel while eliminating chatter is available from Rex-Cut Abrasives.

Rex-Cut Sigma Green Premium grinding wheels feature proprietary construction, which provides rapid stock removal and leaves a nice finish; especially on 304 stainless steel where these 36 grit discs produce a 100 Ra finish. Featuring smooth, chatter-free performance to help reduce operator fatigue, these grinding wheels are available in 4", 4-½", 5" and 7" sizes, with and without hubs, and optional ⁵⁄₈-11 throw-away adapters.

Virtually iron-free, Rex-Cut Sigma Green Premium grinding wheels contain only 0.035 percent iron, with less than 0.1 percent or iron, chlorine, and sulfur combined. Designed for use with right angle grinders, they provide 50 percent faster cutting than aluminum oxide and 20 percent cooler cutting, claims the firm. The 4-½" wheel is also offered in 46- and 60-grit versions.