与普通磨鞋相比，该磨鞋磨削速度快、使用寿命长，对降低钻井成本具有积极意义。
Comparing with common milling shoes, this new type of milling shoes has faster milling rate and longer life and has an important effect on reducing drilling costs.
与现有技术相比具有省力、效率高、速度快，并且使用寿命长的优点。
Compared with the prior art, the utility model has the advantages of labor saving, high efficiency, high speed and long service life.
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