Flap Discs, Z3 -100% Zirconia, XL, 4 1/2", 40 Grit, 5/8 Arbor, 13,300 rpm, T27

XL flap discs have 50% more material than regular density flap discs. Active grinding agent provides cool cutting with light pressure. Special optimized resin bond offers maximum cutting capacity, strong edge stability, and long life. Premium Zirconia Alumina grain with a poly/cotton heat-treated backing. Recommended for aggressive use and heavy duty applications.