Bullet style bit made of Tungsten carbide Alloy, Body is made of 42CrMo, soldering by High temperature vacuum welding technology. It's high strength, wear resistance and without easy to drop the alloy bit.

Litong factory start the business of round shank picks from 2017.The project was established in 2017 and is positioned to apply 3D printing technology, powder metallurgy technology and superhard composite material technology to the hard surface treatment of products, improve wear resistance and extend service life.The main picks series is rotary drill picks,road header picks,coal mining picks and road milling picks.