1. A drill for penetrating rock
   - bore bit, borer, rock drill

Derived forms: stone drills

Type of: drill

• inveigler
• invent
• invention
• inventive
• inventively
• inventiveness
• inventor
• inventory
• inventory accounting
• inventory control
• inventory item
• inventory-clearance sale
• inventorying
• prayerful
• praying mantid
• praying mantis
• prazosin
• PRC
• pre-
• pre-Christian
• pre-Columbian
• pre-contract
• pre-embryo
• pre-emptive strike
• pre-Jurassic