177,8x22mm GR40 10PK For use on: All metals, Alloys, Aluminum, Stainless steel, Steel This flap disc features a specially engineered zirconia alumina abrasive grain blend that self-sharpens with less pressure, providing a high removal rate when... Flex steel features a specially engineered zirconia alumina abrasive grain blend that self-sharpens with less pressure, providing a high removal rate when using angle grinders. AllSteel™ Flap Disc, 7" x 7/8", Type 27, 40 Grit, Zirconia Alumina Industrial Flap Disc Pack Walter Surface Technologies 06B506 Blending Disc 5" GR60 SPIN-ON | Adam's Tarp & Tool Ltd 115mm Flap Wheel For Angle Grinder Provides a high removal rate and decent life on steel Walter Surface Technologies TWIST BLENDEX U™ Discs| Penn Tool Co., Inc The more choice when blending sharp corners, heavy debarring or blending in fillet welds Flex steel provides inimical solution for workers who need a quality, industrial grade flap disc.