Item #: 43318203Brand: WALTER Surface Technologies Model #: 13C130Exact Tooling IR#: 04 Features and Benefits Knotted brushes are made up of multiple filaments/wires bundled together to provide the most aggressive brushing action. Steel is the most common filament/wire material due to its durability and cutting action. It is suitable for general purpose applications and can be used on iron, steel, aluminum, brass, copper, and wood. Product Specifications Outside Diameter (Inch) 2-3/4 Shank Diameter (Inch) 1/4 Wire Type Knotted Fill Material Steel Face Width (Inch) 3/8 Filament Wire Diameter Range 0.0200-0.0299 Maximum RPM 25000 Shank Included Yes Wire Knot Type Cable Twist Filament/Wire Diameter (Decimal Inch) 0.0200 Encapsulated No Brush Color Orange Outside Diameter (Decimal Inch) 2-3/4 Face Width (Decimal Inch) 3/8 Shank Diameter (Decimal Inch) 1/4