I bought this to cut brass. It is also suggested that he can cut steel. Cutting brass sheet and rod was no problem, but after cutting a single piece of 3/16" mild steel bar he again had trouble cutting brass (I should have expected this and used a cutting wheel with my Dremel instead) . Despite what is claimed, there is no steel saw blade that will cut steel without a certain degree of dullness. If cutting non-ferrous materials is important to you, do not shorten saw blade life by attempting to cut black materials.