烧结锥柄钻头：适用于玻璃、陶瓷等硬性材料的钻孔。
Sinter type fastigiate-handle drills: Use for drilling hard and brickle material, such as glass, ceramics etc.
锥钻，打眼钉钻头倾斜的钻子，用于在木头上钻孔以钉角钉或螺钉。
An awl with a beveled tip, used to make holes in wood for brads or screws.
我们设计、产和服务用于制造钻头、锥、片的磨床和砂轮修正。
We design, build and service machines for manufacturing Drills, Taps, Saws and for dressing grinding wheels.
同时，结合深内锥、力平衡、混合布齿等多种钻头稳定性结构设计技术，以增加钻头稳定性。
Simultaneously, bit stability is enhanced using multiple bit stable structure design techniques such as deep inner taper, force balance and hybrid cutter arrangement etc.
烧结锥柄钻头：适用于玻璃、陶瓷等硬性材料的钻孔。
Sinter type fastigiate-handle drills: Use for drilling hard and brickle material, such as glass, ceramics etc...
本文从新的几何关系出发，推导了牙轮背锥规径圆空间位置与钻头直径及其它设计参数的数学关系。
In this paper, a mathematic relationship between space position of gage surface and bit size, and other design parameters is derived on the basis of geometry of cone bit.
本文从新的几何关系出发，推导了牙轮背锥规径圆空间位置与钻头直径及其它设计参数的数学关系。
In this paper, a mathematic relationship between space position of gage surface and bit size, and other design parameters is derived on the basis of geometry of cone bit.
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