Twist drill bit
01
مثقب لولبي, قطعة الحفر الملتوية
a common type of drilling tool consisting of a cylindrical shaft with spiral flutes and a pointed tip, designed to create holes in various materials by rotating and drilling into them
أمثلة
When working with hard materials, a twist drill bit with the right size and speed is essential for efficient drilling.
عند العمل مع المواد الصلبة، فإن قطعة الحفر اللولبية ذات الحجم والسرعة المناسبتين ضرورية للحفر الفعال.



























