CPM S30V (commonly referred to as S30V) was introduced by Crucible in 2002 in response to knife industry demand for a steel with more wear, corrosion resistance and toughness. It has added Vanadium for higher wear resistance and Molybdenum for better pitting resistance. It has superb edge retention because it resists edge chipping. Contents: Carbon 1.45%, Chromium 14%, Molybdenum 2%, Vanadium 4%.
A double-edged or spey blade has two edges. The blade cuts in either direction, with a strong sharp point. This shape is primarily used for fighting knives.
A blade design made popular in handmade hunting knives by Bob Loveless beginning about 1969, used earlier by Randall and others. Characterized by a slow convex-curved drop in the point. The drop-point format lowers the point for control, but leaves the point extremely strong. It's usually coupled with plenty of belly for slicing, making it ideal for hunting knives. An extremely good all-around format that also shows up on tactical and utility knives.