Auger Bullet Teeth adopt quality tungsten carbide tips and 42CrMo to produce with forging and welding prcess, we have mature trencher cutting tools produce process, skillful workers and enough quality raw material. All these factors makes our cutting tools hot sell in many countries in mining and construction. Except for C31HD auger drill bit, we also supply size for C21HD, C23, RL06, RL07, RL09, RL10 etc carbide cutting tools and matched holders. Except for trencher cutting tools, we also supply mining cutting tool and road milling cutting tool, welcome to contact us if you are interested in any of our cutting tools. Features of C31HD auger teeth 1. High performance and high efficiency; …