BYXCO "Manticore" Continental Scythe Stone -- "Grade B"

Don't let the name fool you--these stones are one of the most versatile shapes around for sharpening just about anything with a cutting edge!

An ultra-coarse stone for serious forming, repair, and reprofiling work, the Manticore series of sharpening stones has a bite like no other. Made with ultra-coarse silicon carbide in a homogeneous 80/20 ratio of tough black and friable green varieties in a ceramic bond of carefully tuned hardness. The result is a stone the cuts quickly and aggressively, but without an excessive wear rate. Proudly made in the USA!

The only thing wrong with these examples is varying degrees of chipping.