About this item ✅【 Durable Material】 TOLESA Flap discs use the highest quality zirconia for strength and durability to achieve the best balance between the longest life and the fastest speed. ✅【 Efficient Grinding 】Glass fiber and adhesive form a firm combination, and will not pollute the working surface. The fiberglass pad can effectively absorb vibration and bring more stable for efficient grinding. ✅【 Optimized Angle Design 】Bevel Type 29 angle design makes the edge and corner grinding much more convenient, great for surface sanding, and working on welded seams at a working angle of 5 to 15°. ✅【 Dimension 】 4-1/2-inch diameter with a 7/8-inch arbor size compatible with an angle grinder with a maximum 13, 300 RPM grinding speed. ✅【 Widely Application】80 grit flap disc is coarser in build and is ideal for heavier stock removal. TOLESA flap disc is designed for grinding, blending, sanding, and finishing on a wide range of material. And it is widely used for metal or wood, to remove the weld reinforcement, deburring, polishing, and to rust removal.