Which of the following is NOT a type of drilling equipment? 

Explanation: 

Excavator:

1. An excavator is a heavy construction equipment used for digging, lifting, and material handling rather than drilling.

2. It typically consists of a bucket, arm, and a rotating cab mounted on a tracked or wheeled vehicle.

3. Not used for drilling deep holes or boring into materials. Instead, it’s used for digging trenches, foundations, or removing earth.

Additional Information

Truck Mounted Drill:

1. A truck-mounted drill is a type of drilling equipment attached to a truck, providing mobility.

2. It is commonly used in geotechnical investigations, mining, construction, and oil/gas drilling.

3. The truck provides the base and power for drilling, making it suitable for various soil types and depths.

Jack Hammer:

1. A jackhammer is a pneumatic tool used for breaking or drilling through hard materials like concrete or rock.

2. Though it is primarily a breaking tool, in some contexts, it can be used for shallow drilling or boring in hard surfaces.

3. It’s portable and used in construction, demolition, and mining.

Drifters:

1. Drifters are pneumatic drilling machines that are commonly used in mining and tunneling for drilling horizontal or inclined holes.

2. They are typically mounted on equipment like drilling rigs and used to drill in tight or difficult spaces.

3. Drifters are specifically designed for rock drilling and work well in tough geological conditions.