6 in Crimped Wire Wheel Brush, Arbor Hole Mounting, 0.014 in Wire Dia., 1 1/8 in Bristle Trim Length/ OUTSIDE DIAMETER: 6.000 INCHES NOMINAL WIRE DIAMETER: 0.0140 INCHES NOMINAL FACE WIDTH: 1.000 INCHES NOMINAL ARBOR HOLE DIAMETER: 2.000 INCHES NOMINAL FILL MATERIAL: STEEL WIRE FILL TYPE: CRIMPED TRIM LENGTH: 1.125 INCHES NOMINAL SPECIAL FEATURES: HIGH CARBON TEMPERED STEEL WIRE STYLE DESIGNATOR: G3 UPRIGHT SHAPE NONDEFINITIVE SPEC/STD DATA: 2 TYPE AND 3 CLASS