Google Niobium and the only "hits" for this element point back to Drill Hog. What a crock of $hit
I've never have used any Drill Hog so other than I prefer stuff not made in communist countries, when available and the cost fits in my budget, I have no opinion about them.
A Google search for
Niobium turns up about 11,000,000 results for me including:
https://periodic.lanl.gov/41.shtml
"Niobium metal is used in jewelry and as an alloying agent in steel to increase its strength. Niobium alloy steels are often used in pipelines."
https://www.britannica.com/science/niobium
"Niobium (Nb), chemical element, refractory metal of Group 5 (Vb) of the periodic table, used in alloys, tools and dies, and superconductive magnets. Niobium is closely associated with tantalum in ores and in properties.
Due to the great chemical similarity of niobium and tantalum, the establishment of the individual identities of the two elements was very difficult. Niobium was first discovered (1801) in an ore sample from Connecticut by the English chemist Charles Hatchett, who called the element columbium in honour of the country of its origin, Columbia being a synonym for the United States. In 1844 a German chemist, Heinrich Rose, discovered what he considered to be a new element occurring along with tantalum and named it niobium after Niobe, the mythological goddess who was the daughter of Tantalus. After considerable controversy it was decided that columbium and niobium were the same element. Eventually international agreement (about 1950) was reached to adopt the name niobium, though columbium persisted in the U.S. metallurgical industry.
Niobium is roughly 10 times more abundant in the crust of the Earth than is tantalum. Niobium, more plentiful than lead and less abundant than copper in the Earth’s crust, occurs dispersed except for relatively few minerals. Of these minerals, the columbite–tantalite series, in which columbite (FeNb2O6) and tantalite (FeTa2O6) occur in highly variable ratios, is the main commercial source. Pyrochlore, a calcium sodium niobate, is also the principal commercial source. Natural niobium occurs entirely as the stable isotope niobium-93."
https://www.livescience.com/34682-niobium.html
"Niobium is a shiny, white metal that typically forms a film on its surface when exposed to air, turning shades of blue, green, or yellow, according to Chemicool. It has a wide range of uses from use in hypoallergenic jewelry to jet engines to superconducting magnets.
Just the facts
- Atomic number (number of protons in the nucleus): 41
- Atomic symbol (on the periodic table of elements): Nb
- Atomic weight (average mass of the atom): 92.906
- Density: 8.57 grams per cubic centimeter
- Phase at room temperature: Solid
- Melting point: 4,491 degrees Fahrenheit (2,477 degrees Celsius)
- Boiling point: 8,571 degrees F (4,744 degrees C)
- Number of isotopes (atoms of the same element with a different number of neutrons): 35
- Most common isotopes: Nb-93 (100 percent natural abundance)
https://en.wikipedia.org/wiki/Niobium#Applications
"Niobium, formerly known as columbium, is a chemical element with the symbol Nb (formerly Cb) and atomic number 41. Niobium is a light grey, crystalline, and ductile transition metal. Pure niobium has a hardness similar to that of pure titanium,[2][contradictory] and it has similar ductility to iron. Niobium oxidizes in the earth's atmosphere very slowly, hence its application in jewelry as a hypoallergenic alternative to nickel. Niobium is often found in the minerals pyrochlore and columbite, hence the former name "columbium". Its name comes from Greek mythology, specifically Niobe, who was the daughter of Tantalus, the namesake of tantalum. The name reflects the great similarity between the two elements in their physical and chemical properties, making them difficult to distinguish.[3]"