- bit wing
- 刮刀: slicker; carryall; erasing k ...
- 钻头: boring crown; bore bit; dril ...
- 的: 4次方是 The fourth power of 2 i ...
- 片: a flat,thin piece; slice; fl ...
- 刮刀钻头: blade bit; blade drag bit; drag drill bit; drag type bit; dragdrillbit; single-bladed bit; winged scraping bit
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