Crimped Wire Cup Brush, Mounting Type Stem, Brush Dia. 1-3/4", Wire Dia. 0.0118", Shank Size 1/4", Max. RPM 13,000, Fill Material Brass, Trim Length 3/4", For Use With Power Drills, Die Grinders, Right Angle Air Die Grinders, Includes (1) 1-3/4" Crimped Wire Cup BrushFeatures:Max. RPM -13,000 Fill Material -Brass Trim Length -3/4" For Use With -Power Drills, Die Grinders, Right Angle Air Die Grinders Includes -(1) 1-3/4" Crimped Wire Cup Brush Includes -(1) 1-3/4" Crimped Wire Cup Brush UNSPSC -27111907WARNING:California ResidentsThis product can expose you to chemicals including Styrene, which is known to the State of California to cause cancer and birth defects or other reproductive harm.California proposition 65 warning