Zirconium Oxide Flap Disc, 100 x 16mm, 40 Grit - Draper 83715, These premium-quality resin-bonded zirconium oxide flap discs offer enhanced cutting performance and efficiency.They have a self-sharpening feature, which increases high stock removal and durability.The strong X-weight polyester-cotton backing allows flexible and fast cutting on medium to high-pressure grinding and finishing applications.The T-29 conical shape features 1525 ° angled flaps, ideal for contoured and flat-edged work.Suitable for sanding, grinding, stock removal and weld preparation of metal, carbon steel, stainless steel, sheet metal, wood and plastic.Compatible with 115mm angle grinders with a 22.23mm bore. Draper 83715 Zirconium Oxide Flap Disc, 115 x 22.23mm, 60 Grit