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drill bushing : ウィキペディア英語版 | drill bushing A drill bushing, also known as a jig bushing,〔.〕 is a tool used in metalworking jigs to guide cutting tools, most commonly drill bits. Other tools that are commonly used in a drill bushing include counterbores, countersinks, and reamers. They are designed to guide, position, and support the cutting tool.〔.〕 In the USA, Customary sized bushings are standardized via ASME B94.33 and metric bushings are standardized via ASME B94.33.1.〔.〕〔http://catalog.asme.org/Codes/PrintBook/B94331_1998_Jig_Bushings.cfm〕 There are over 50,000 standard configurations of customary sized bushings.〔 ==Types==
Drill bushings can generally be classified as: ''press fit'' bushings or ''renewable'' bushings. Other classification methods include by head type, by use, and by liner type (or lack thereof).〔
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「drill bushing」の詳細全文を読む
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