发明申请
US20100018776A1 CUTTING BIT FOR MINING AND EXCAVATING TOOLS 审中-公开
采矿和挖掘工具切割钻头

CUTTING BIT FOR MINING AND EXCAVATING TOOLS
摘要:
A wear-resistant cutting bit for use on a mining or excavating cutting tool is disclosed. The cutting bit utilizes a hardened insert having a narrow base attached to the remainder of the cutting bit. An extended collar of the hardened insert projects from the cutting bit and ends with a generally conical section. The extended collar and narrow base of the hardened insert enable the cutting bits of the present invention to be more wear-resistant and cost-effective than other cutting bits used on mining and excavating equipment.
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