Increase metal removal rates with the BlueFire® 4NV ZA Type 18R portable snagging plug. Zirconia alumina abrasive grain is more friable than standard zirconia alumina blends for quick, free cutting to increase productivity. Resin bond technology increases durability for improved grinding on various materials, including 300 and 400 Series stainless, hard and soft carbon, and tool steels, titanium, and super alloys. With a life five times that of aluminum oxide, this plug holds up to the power of medium- and high horsepower inline grinders and flexible shaft grinders for heavy duty foundry snagging, offhand grinding and stock removal applications to maximize your efficiency.