带中心水眼的钻头的英文

• centerhole bit

• 带:    belt; girdle; ribbon; band; ...
• 中心:    centre; centrum; centrality; ...
• 水眼:    hydrophthalmia; hydrophthalm ...
• 的:    4次方是 The fourth power of 2 i ...
• 钻头:    boring crown; bore bit; dril ...