3m Ear Plugs,Corded,Cylinder,29dB,PK200 11001

Depressed Center Grinding Wheel, Abrasive Material Silicon Carbide, Connector Size 5/8 In.-11, Connector Type Threaded Hole, Grit 24, Overall Diameter 4 1/2 in, Overall Thickness 0.25 in, Primary Material Application Cast Iron, Concrete, Masonry, Natural Stone, Compatible Tool Type Angle Grinder, Series C24N, Wheel Type Type 27, Maximum Operating Speed 13,300 RPM, Grade Extra Coarse