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Lincoln Electric KH155 Mounted Abrasive Flap Wheel, Round Shank, Aluminum Oxide, 3' Diameter x 1' Width, 60 Grit (Pack of 3): Industrial & Scientific. Lincoln Electric KH155 Mounted Abrasive Flap Wheel, Round Shank, Aluminum Oxide, 3" Diameter x 1" Width, 60 Grit (Pack of 3): Industrial & Scientific. mounted abrasive flap wheel is resin bonded to a strong cloth backing. Ideal for effective dry sanding, grinding, polishing and contour work. Maximum speed is 000 RPM. Aluminum oxide grit. Comes with 1/-inches round shank. Measures 3-inches diameter by 1-inches width. MTD flap wheel grinds and polishes both flat and contoured surfaces. Its aluminum oxide grain provides enhanced performance. Resin bonded to a strong cloth backing. Applications include scouring, deburring, removing rust and scale. Delivers a smooth, polish-grind action on flat, contoured or intricate surfaces with ease and safety. Suitable for grinding or polishing hard-to-reach convex and concave surfaces, weldment, machine housings, profiles, cylinders and internal surfaces. Aluminum oxide grain for strong performance. Industrial, professional quality. 。 。 。