The first Tricone Bits patent was secured by American Howard R. Hughes in 1909. The Tricone Bits at the time only had a scraper bit that could strike the very soft ground. It was limited to using Tricone Bits since it was unable to scratch the hard ground. Not so good.
In 1925, the Liangyalun bit with meshing and interlocking teeth first debuted. These teeth could "floss" against one another to clear out the dirt and rock particles stuck between them, protecting you from being reported. Although this Tricone Bits could drill longer sections without needing to change Tricone Bit and could partially pierce both hard and soft interlayers, the paradox of a short bearing life was apparent.
Tricone Bits also made its market debut in 1933, offering notable benefits and a comparatively long lifespan. The evolution that followed saw the appearance of many bit kinds and sizes, as well as significant advancements in Tricone Bits materials and heat treatment techniques. The age of information development thus began.
