20PCS Flap Discs 4 1/2 for Angle Grinder 40/60/80/120 Grit Flap Disc

STRONGEST FIBER BACKING THAN OTHER PRODUCTS: 4 1/2 grinding wheels made for TOP-LEVEL Hard zirconia.Good material for griding wheel. This Flap Disc is constructed of industrial grade high density premium zirconia material, increased durability than standard flap discs, built for a more robust and economical grinding wheel. LONGEST LASTING: Grinder sanding disc has long lasting time. Safe and Effective. long-lasting Material. Fast polishing,and its has durable fiberglass backing and fine crystal size.T29 flap disc construction with fiberglass backing plate effectively absorbs vibrations without smear during usage, bring more stable & efficient grinding. BEST MATCH SIZE:Flap disc 4-1 2 inch with 40/60/80/120 Grit 4 different grits total 20 packs.This 20 Pack flap disc set includes 10 pieces of 40 grit, 5 pieces of 60 grit, 3 pieces of 80 grit and 2 pieces of 120 grit, great Choice for cutting various metals, perfectly meets all you need. Perfect for everyday use. excellent materials and excellent craftsmanship ensure long-lasting durability.