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.

文章介绍了种新型小尺寸钻头，它主个偏置的多锥形牙轮和个圆柱形轮及两个牙掌组成。

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芯轴位置进而达到调轮轴向尺寸的目的。

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.

文章介绍了型小尺寸钻头，它主要由个偏置的多锥形牙轮和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，它主要由一偏置的多锥形轮和一圆柱形滚轮及两组成。

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.

轴径向和轴向的载能都比较大，各配件可替换性强。轴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.

文章介绍了种新型小尺寸钻头，它主要由偏置的多锥形牙轮和柱形滚轮及两牙掌组成。

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。轴承通过节偏心外六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.

承径和承载能都比较，件可替换性强。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尺寸目。