1. A drill for penetrating rock
   - borer, rock drill, stone drill

Derived forms: bore bits

Type of: drill

• categorical
• categorical imperative
• categorically
• categorisation
• categorise
• categorised
• categorization
• categorize
• categorized
• category
• catena
• catenary
• catenate
• catenoid
• catenulate
• cater
• cater-cornered
• cateran
• catercorner
• caterer
• catering
• caterpillar
• caterpillar track
• caterpillar tread
• caterpillar-tracked