Forester 5-3/4” Borizon Grinding Wheels are made from Borizon which replaced aluminum oxide for grinding steel  due to Borizon’s  far superior abrasive properties. Borizon wheels can grind more material, to a higher degree of accuracy, than any other abrasive. Forester 5-3/4” Borizon grinding wheels  are suitable for use on a variety of popular grinders such as: Silvey®, Stihl®, Windsor®, Echo®, Jolly®, Racunbi®, Efco®, and Oregon.