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Step drill bit
/stˈɛp dɹˈɪl bˈɪt/
/stˈɛp dɹˈɪl bˈɪt/
Noun (1)
"step drill bit" 的定义和意义
Step drill bit
名词
01
阶梯钻头
a specialized drill bit with multiple stepped diameters, allowing for the gradual enlargement of holes and the creation of various hole sizes with a single bit
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