在石油钻井industryand各类牙轮钻头，它是rollerbit中不可缺少的重要组成部分，但对于一些钻井行业，价格太高，这已ledsome钻井行业不得不在二级牙轮钻头的极大兴趣。 Itsprice低，质量可靠（只使用了今生1/3石油钻探），减少了大量成本的钻井行业​​。 所以秒针ofcone位已成为一些钻探工业的重要组成部分。

最广​​泛的一种inoil钻井和地质钻探牙轮钻头。 牙轮钻头的冲击，挤压和剪切破碎旋转岩石的作用，所以牙轮钻头能够适应软，中，硬的tovarious阶层。 特别是jettype牙轮钻头和牙轮钻头牙轮钻头喷嘴的外观后，钻井速度greatlyimproved，这是conebit发展史上的伟大革命。 牙轮钻头按牙型可分为铣（钢牙）teethroller位。 （石镶嵌在硬质合金齿牙轮钻头，根据tothe锥号），可分为单，双锥形托辊，滚筒和athree牙轮钻头。 目前，在国内外，最常见，最usedone为三牙轮钻头。

In the oil drilling industryand all kinds of cone bits, it is an important and indispensable part of rollerbit, but for some of drilling industry, the price is too high, which has ledsome drilling industry had a great interest in the secondary cone bit. Itsprice is low and quality is reliable (in petroleum drilling using only the lifeof 1/3) , reduces a lot of cost for drilling industry. So the second hand ofcone bit has become an important part for some drilling industry.

The most widely used one inoil drilling and geological drilling is cone bit. Cone bit is of impact, crushing and shearing crushing rock role in rotation, so cone bit can adapt tovarious strata of soft, medium and hard. Especially after the appearance of jettype roller bit and rock bit cone bit nozzle, the drilling speed is greatlyimproved, which is a great revolution in the history of the development of conebit. Cone bit by tooth type can be divided into milling (steel teeth) teethroller bit. (rock inlaid on the hard alloy tooth roller cone bit; according tothe cone number) can be divided into single, double cone roller, roller and athree roller bit. At present, at home and abroad, the most common and most usedone is three cone bit.