This is a wire cutter.It is made of steel.This is good for electrical wire, which has copper or aluminum wire.It is not good for solid steel wire.You will put a dent in the cutting edges if you use it on steel.A steel cutter shouldnt be used to cut steel.They will deform each other.The cutter should be harder than the wire to be cut.This wire snip has no brand name. It is used. It has been sharpened. The handle grips are imperfect.This is also called diagonal cutter, side cutter.