ITEM NAME:101pcs/lot Metal Cutting Disc for Grinder Rotary Circular Saw Blade Wheel #gib Store Home Promotion Hot Item Add to Fav.Material: Boron oxide. The saw blade is sharp, without breaking edges, and has low loss of processed materials. Mini ultra-thin resin cutting small grinding wheel disc, the product is high-performance abrasive, non-burn workpiece, good sharpness, high durability (wear resistance), safety and efficiency.