FLEXIBLE BRUSING ACTION: Wolverine 3/4" Crimped Wire End Brush features solid end construction and flexible brushing action LONG BRUSH LIFE: Manufactured with the highest quality construction for smooth, efficient performance and long life COST-EFFECTIVE: Engineered to provide cost-effective use for less demanding applications APPLICATION: 1/4 inch stem diameter for use on die grinder, drill and drill presses. SPECIFICATIONS: Wolverine 1" Crimped Wire End Brush, .006" Stainless Steel Fill, 1/4" Stem, 7/8" Trim Length, 2-3/4" Overall Length, Max RPM 22,000, Made in the USA