Physics · Workshop Technology
तांबे (copper) की ड्रिलिंग के लिए उपयोग किए जाने वाले ट्विस्ट ड्रिल का अनुशंसित बिंदु कोण (point angle) कितना होता है?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 345°
- 480°✓
सही उत्तर देखें
80°
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