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用氧气镶焊硬质合金钻头，价值昂贵成本高。特别是在较偏僻地区的地质勘探队里更为困难。需要到很远的城市购运氧气。也常常因为氧气供应不足，不能及时镶焊合金钻头而影响生产。
Carbide drill inserts with oxygen are expensive and costly. Especially in more remote geological exploration team more difficult. Need to go far to the city to buy oxygen. Often due to lack of oxygen supply can not promptly inlaid alloy drill and affect the production.