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mechanical engineering: Drilling and parts of a twist drill
Nomenclature and basic parts of drilling tool (twist bit)
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Twist drill tool nomenclature for drilling (parts and important angles
Identifying 9 parts of a drill (with illustrated diagram) .
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![Twist Drill: Parts, Types, and Twist Drill Nomenclature [Pictures]](https://i2.wp.com/www.theengineerspost.com/wp-content/uploads/2020/07/Twist-drill-nomenclature-min-510x420.jpg)
