Milwaukee 5 Pack - 4 1 2 Grinding Wheel For Grinders - Aggressive Grinding For Metal & Stainless Steel - 4-1/2" x 1/4 x 7/8-Inch | Depressed 5 Milwaukee Premium 4-1/2 Depressed Grinding Wheels for Metal | 4-1/2-Inch x 1/4-Inch x 7/8-Inch | Optimized for Milwaukee 4-1/2 Angle Grinders and compatible with All 4-1/2 Angle Grinders with 5/8 arbor Engineered in Brookfield WI with Premium White Brown Fused Aluminum bound proprietarily together with Makitas exclusive Phenol Resin bond allows for optimal grain ware for consistent grinding PERFORMANCE, AGGRESIVITY & BALANCE, grinding longer and faster than other wheels in its class High-performance brown fused aluminum grain and hard bond enable these Makita wheels to consistently grind all steel and metal including welds, carbon steel, structural steel, iron, steel pipes and alloy steel over an extra-long life span | Synthetic Resinoid Bond is ideal for fast stock removal, high operating speeds and aggressive grinding action used by professionals Carefully selected Grain Grit & Wheel 1/4" Thickness provide balanced Grind Life, Stock Removal Rate, Balanced Precision, Power Demands & Heat Buildup, allowing you to grind longer, consistently precise with maximal wheel integrity, moderate power demands and relatively low heat buildup Coarse 24 grit grains are used for rapid stock removal and are designed for hard General Steel and Welding applications | Quality Assured, Aggressive and Long Life for consistent performance in the most demanding applications