3M™ Fibre Disc 381C, 50, 4-1/2 in x 7/8 in, Die 450E, 25 ea/Case Min Qty Order:25 blocks of material in our

blocks of material in our Standard Abrasives™ Unitized Block - 600 Series have a soft to medium density

3M SKU: 7100281408

and aesthetic finishing

3M SKU: 7010483958

Z-weight in grades 20+ and 24+ with all other grades being a Y-weight cloth backing that is tough enough for aggressive sanding action

3M™ Fibre Disc 381C, 50, 4-1/2 in x 7/8 in, Die 450E, 25 ea/Case Min Qty Order:25 blocks of material in our3M SKU: 7000118936 Lead Time: ~2 days Our 3M Fibre Disc 381C is a versatile and general purpose metalworking disc, designed to help with a variety of applications from grinding, weld removal & finishing to blending on common metals like carbon steel. Closed coat construction provides good grain density and durability. Heavy weight fibre backing is tough and durable. Resin bond withstands heat and stabilizes the disc under pressure and heat to increase