We can reduce our overall drill bit production costs by devoting the Cookville factory entirely to drill bit production.
我们可以通过把 Cookville 工厂全部投入到钻头生产中来降低钻头生产成本。
Bit gauges, rings of defined circumference, are slipped around drill bits to detect and measure wear, which reduces the circumference of the bit during drilling.
钻头规是种周长一定的环型物，它卡紧在钻头的周围，去检测和测量钻头是否磨损，即在钻井过程中是否减少了周长。
This allows the bit to drill around a central cylinder of rock, which is taken in through the bit and into the core barrel.
这样允许钻头围绕岩石的中心圆柱体钻进，并通过钻头进入取芯桶。
The present technique is a new thin cutoff wall construction method by modifying the original method as to use flat drill bit instead of cross bit and adopt positive and negative circulating system.
冲切成槽薄壁混凝土防渗墙施工技术是在原冲击成槽建造防渗墙的基础上，对冲击钻头和施工工艺加以改进，用扁钻头代替十字钻头，用正反两种循环系统进行泥浆循环的一种新防渗墙施工方法。
Compared the number of cone bit bearing capacity and concluded: diamond wheel bearing life is far greater than the cone drill bit bearings.
对比了牙轮钻头的轴承能力数，得出结论：轮式金刚石钻头轴承寿命远远大于牙轮钻头轴承。
The self-feeding bit carries the special rubber tube that provides high-pressure hydrodynamics for the bit to drill continuously.
自进式钻头带动为其提供高压水动力的特制胶管向前连续钻井。
The technical proposal of the utility model comprises a drill body and a drill bit. The utility model is characterized in that bit teeth are arranged on the drill bit.
本实用新型的技术方案是：包括钻体和钻头，其特征是在钻头上固定设有 钻齿。
Wheel is a new diamond drill bit for oil drilling tools, drill bit bearing life with their life impact of crucial importance.
轮式金刚石钻头是一种新型的石油钻探工具，钻头轴承的寿命对其使用寿命有着致关重要的影响。
So we can improve the capability of diamond bit and the stability of product quality, then reduce the cost of manufacturing diamond drill bit finally.
从而提高金刚石钻头的性能，提高产品质量的稳定性，并降低金刚石钻头的制造成本。
The drill bit is a direct tool for rock breakage. The rate of penetration is closely related with the drill bit as well as the mechanical properties of the rocks.
钻头是直接破碎井底岩石的工具，钻井速度的快慢不仅与钻头有关，而且与所钻岩石的力学性质密切相关。
Diamond cone bit is a new drill bit which make use of cutting cutters interacting with rock slowly and alternately.
轮式金刚石钻头是利用切削齿缓慢交替切削运动来破碎岩石的新型钻头。
The invention comprises a handle and a drill bit, wherein the drilling bit has a trocar structure consisting of two parts, namely a sleeve and a tube core needle.
本发明包括手柄和钻头，钻头为套管针结构，包括套管和管芯针两部分组成。
Compared with the prior art, the utility model has the advantage of automatic shutdown of the drill bit after the bone is pierced by the drill bit.
本实用新型与已有技术相比，具有钻头钻穿骨头后自动停止钻动的优点。
The invention comprises a handle and a drill bit, wherein the drill bit takes the structure of a trocar and consists of two parts of a sleeve and a mandrin;
本发明包括手柄和钻头，钻头为套管针结构，包括套管和管芯针两部分组成。
The adjustable stop has a drill bit engaging mechanism to selectively lock the adjustable stop the drill bit at a desired location to limit the dept that the drill may penetrate into the bone.
其中，当所述钻头被锁定到所述可调深度限位件上时，所述外壳近端处于距所述可调深度限位件远端的第一轴向距离的位置，所述第一轴向距离与进入所述骨头部分的最大钻孔深度成正比。
They supply plentiful useful information for the design and function of the integral PDC drill bit, while stating the principle of destroying the rock of the integral PDC drill bit.
对复合钻头的几何设计和性能设计提供了丰富的、有用的信息，同时叙述了组合钻头的破岩原理。
They supply plentiful useful information for the design and function of the integral PDC drill bit, while stating the principle of destroying the rock of the integral PDC drill bit.
对复合钻头的几何设计和性能设计提供了丰富的、有用的信息，同时叙述了组合钻头的破岩原理。
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