Norton 57A Vitrified Bench and Pedestal Abrasive Wheel, Type 01 Straight, Aluminum Oxide, 1-1/4" Arbor, 12" Diameter, 1" Thickness, 46 Grit
- High quality silicon carbide (39C) abrasive in a premium vitrified bond system, K is medium grade
- Precision engineered to maximize cut rate, finish and wheel life
- 57A is formulated for high speed tool steels and other metals
- Each wheel contains arbor bushings in sizes 3/4", 7/8", and 1"
- Used for offhand deburring and sharpening of parts and tools on a bench or pedestal grinder