Overview Reviews Product Description For use on portable or stationary machines. Can be used on the edge or on either side of the wheel. Safe for use on all metals Walter Catalog Product Videos Custom Field Diameter 3" Width 1/4" Arbor 3/8" Grade 6AM Max RPM 18100 Product Reviews Write a Review Write a Review × Walter Blendex U® 20 Pc. 3 x 1/4 x 3/8" 6AM U Wheel 07U323 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *