Definition

1. Noun:
   • Drill bit: The sharp, pointed, or spiraled cutting tool attached to the end of a drill (such as a hand drill, power drill, or machine tool) used for making holes in materials like wood, metal, concrete, or plastic.

Usage Examples

• Noun:
  • Anh cần thay mũi khoan mới để khoan vào bê tông. (You need to change to a new drill bit to drill into concrete.)
  • Mũi khoan này quá cùn, nó không cắt được nữa. (This drill bit is too dull; it doesn't cut anymore.)
  • Hãy chọn mũi khoan có kích thước phù hợp với lỗ bạn cần. (Choose a drill bit of the size that fits the hole you need.)

Advanced Usage

• The term "mũi khoan" is specific to the removable cutting component. The entire tool is called "máy khoan" (drill machine) or "khoan" (drill).
• Different types of "mũi khoan" are named for their material or purpose: mũi khoan gỗ (wood drill bit), mũi khoan sắt (metal drill bit), mũi khoan bê tông (masonry/concrete drill bit).

Variants and Related Words

• Khoan (v): to drill.
  • Tôi sẽ khoan một lỗ trên tường. (I will drill a hole in the wall.)
• Máy khoan (n): drill (the machine).
  • Anh ấy mua một chiếc máy khoan cầm tay. (He bought a handheld drill.)
• Mũi khoan kim cương (n): diamond-tipped drill bit (for very hard materials).

Synonyms

• Bit (as in "drill bit").
• Boring tool (technical term).

Related Phrases

• Thay mũi khoan: to change the drill bit.
  • Việc đầu tiên là tháo và thay mũi khoan. (The first step is to remove and change the drill bit.)
• Mũi khoan xoắn: twist drill bit (the most common type with a spiral groove).
  • Mũi khoan xoắn dùng để khoan gỗ và kim loại. (A twist drill bit is used for drilling wood and metal.)