' Convolute Wheel, Deburring, Series XL-WL, Diameter 8 In., Width 3/8 In., Arbor Hole 3 In., Abrasive Material Silicon Carbide, Hard (8) Density, Fine Grade, Max. RPM 4500, For Critical Deburring and Finishing Applications, Minimizes Smearing, Provides Superior Performance on Stainless Steel, Titanium and Nickel Alloys '