These premium-quality resin bonded aluminium oxide flap discs provide durability and fast results. 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 15––25 degree 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.