In this paper,a new small-sized bit is introduced.The bit is mainly composed of a biassed polyconic cutter,a cylindric roller and two bit legs.

文章介绍了一种新型小尺寸钻头，它主要由一个置的多锥形牙和一个圆柱形两个牙掌组成。

With greater axial and radial load rating capacity, good replaceability of components. The shaft can be adjusted through external hexogan then to adjust the axial part dimension.

轴承径向和轴向的承载能都比较大，各配件可替换性强。轴承通过调外六角来调整芯轴位置进而达到调整侧轴向尺寸的目的。

In this paper,a new small-sized bit is introduced.The bit is mainly composed of a biassed polyconic cutter,a cylindric roller and two bit legs.

文章介绍了一种新型小尺寸钻头，它主要由一个偏置的多锥形牙轮和一个圆柱形滚轮及两个牙掌。

With greater axial and radial load rating capacity, good replaceability of components. The shaft can be adjusted through external hexogan then to adjust the axial part dimension.

承径向和向的承载能都比较大，各配件可替换。承通过调节偏心外六角来调整芯位置进而达到调整侧滚轮向尺寸的目的。

In this paper,a new small-sized bit is introduced.The bit is mainly composed of a biassed polyconic cutter,a cylindric roller and two bit legs.

文章一种新型小尺寸钻头，它主要由一个偏置的多锥形牙轮和一个圆柱形滚轮及两个牙掌组成。

With greater axial and radial load rating capacity, good replaceability of components. The shaft can be adjusted through external hexogan then to adjust the axial part dimension.

轴承径向和轴向的承载能都比较大，各配件可替换性强。轴承通过调节偏心外六角来调整芯轴位置进而达到调整侧滚轮轴向尺寸的目的。

In this paper,a new small-sized bit is introduced.The bit is mainly composed of a biassed polyconic cutter,a cylindric roller and two bit legs.

介绍了一种新型小尺寸钻头，它主要由一个偏置的多锥形牙轮和一个圆柱形滚轮及两个牙掌组成。

With greater axial and radial load rating capacity, good replaceability of components. The shaft can be adjusted through external hexogan then to adjust the axial part dimension.

轴承径向和轴向的承载能都比较大，各配件可替换强。轴承通过调节偏心外六角来调整芯轴位置进而达到调整侧滚轮轴向尺寸的目的。

In this paper,a new small-sized bit is introduced.The bit is mainly composed of a biassed polyconic cutter,a cylindric roller and two bit legs.

文章介绍了一种新型小尺寸钻头，它主要由一个置的多锥牙和一个圆柱及两个牙掌组成。

With greater axial and radial load rating capacity, good replaceability of components. The shaft can be adjusted through external hexogan then to adjust the axial part dimension.

轴承径向和轴向的承载能都比较大，各配件可替换性强。轴承通过调节六角来调整芯轴位置进而达到调整侧轴向尺寸的目的。

In this paper,a new small-sized bit is introduced.The bit is mainly composed of a biassed polyconic cutter,a cylindric roller and two bit legs.

文章介绍了一种新型小尺寸钻头，它主要由一偏置的多锥形轮和一圆柱形滚轮及掌组成。

With greater axial and radial load rating capacity, good replaceability of components. The shaft can be adjusted through external hexogan then to adjust the axial part dimension.

轴承径向和轴向的承载能都比较大，各配件可替换性强。轴承节偏心外六角来整芯轴位置进而达到整侧滚轮轴向尺寸的目的。

In this paper,a new small-sized bit is introduced.The bit is mainly composed of a biassed polyconic cutter,a cylindric roller and two bit legs.

文章介绍了一种新型小尺寸钻头，它主要由一个偏置的多锥形轮和一个圆柱形滚轮及两个成。

With greater axial and radial load rating capacity, good replaceability of components. The shaft can be adjusted through external hexogan then to adjust the axial part dimension.

径向和向的载能都比较大，各配件可替换性强。过调节偏心外六角来调整芯位置进而达到调整侧滚轮向尺寸的目的。

In this paper,a new small-sized bit is introduced.The bit is mainly composed of a biassed polyconic cutter,a cylindric roller and two bit legs.

文章介绍了一种新型小尺寸钻头，它主要由一个偏置的多锥形牙轮和一个圆柱形滚轮及两个牙掌组成。

With greater axial and radial load rating capacity, good replaceability of components. The shaft can be adjusted through external hexogan then to adjust the axial part dimension.

轴承径向和轴向的承载能都比较大，各配件可替换性强。轴承通过调节偏心外六角来调整芯轴位置进而达到调整侧滚轮轴向尺寸的目的。

In this paper,a new small-sized bit is introduced.The bit is mainly composed of a biassed polyconic cutter,a cylindric roller and two bit legs.

文章介绍了一种新型小尺寸钻头，它主要由一个置的多锥形牙和一个圆柱形两个牙掌组成。

With greater axial and radial load rating capacity, good replaceability of components. The shaft can be adjusted through external hexogan then to adjust the axial part dimension.

轴承径向和轴向的承载能都比较大，各配件可替换性强。轴承通过调外六角来调整芯轴位置进而达到调整侧轴向尺寸的目的。