Weiler Wolverine 4.5 inch conical flap discs deliver a fast cut rate and consistent performance at a good value when grinding steel and other metals. The type 29 conical disc shape maximizes surface contact when grinding between 15∞ ñ 35∞ for aggressive stock removal on flat surfaces while the 80 grit abrasive grain is ideal for blending, rust removal, cleaning, and finishing with an angle grinder. Wolverine is an aggressive, get it done product line for everyday general purpose use.