Review on Uxcell Tungsten Carbide Jewelry Engraving Cutting Tools for Industrial Drill Bits by Robert Moloney

I use these bits to cut fine lines in cigar boxes to fit around the neck during assembly. They cut very well as long as you don't overheat the bait and cut the line slower rather than faster. I buy this item regularly and would recommend it if you cut wood or plastic, drill small holes and don't mind the tendency to brittle under side loads. I recommend these beats and will buy them again