Drill

Drill is a tool with rotating drill bit used for drilling holes in various materials.

The origin of drill were Bow drills at the age of Harappans and Egyptians.

The drills are driven using elecricity, compressed air as a source of medium.

Drills types vary by their utlization :

• Drills used for hard materials like rock, concrete.
• Drills used to bore holes in earth for water or oil.
• Drills used to drive screws.
• Drills used for Machining.