DRILLS


A Drilling Machine is used for foundation construction in the building industry, or for drilling water, oil wells or blastholes.

Drilling machine parts

1- Chassis
2- Power Unit
3- Rig Mast
4- Kelly
5- Drill Bit

Types of Drilling Machines

Drilling machines are classified on the basis of:
their constructional features, or
the type of work they are required to do

Various types of Drilling Machines

Their are various types of Drilling Machines available:

1- Portable drilling machine
2- Bench-type Drilling machine
3- Sensitive drilling machine
4- Upright drilling machine
5- Radial drilling machine
6- Multiple-spindle Drilling machine
7- Deep hole Drilling machine
8- Gang drilling machine
9- Automatic drilling machines

Drills used as Heavy Machinary Construction Equipments

There are two types of machine drill,
1- The bench drill and
2- The pillar drill

The bench drill is used for drilling holes through materials including a range of woods, plastics and metals. It is normally bolted to a bench so that it cannot be pushed over and that larger pieces of material can be drilled safely. Bench Drills sizes varies due to difernet siezes of benches.
 
The larger version of the machine drill is called the pillar drill. This has a long column which stands on the floor. This can do exactly the same work as the bench drill but because of its larger size it is capable of being used to drill larger pieces of materials and produce larger holes.

Safety

 

1. Always use the guard

2. Wear goggles when drilling materials

3. Clamp the materials down or use a machine vice

4. Never hold materials by hand while drilling

5. Always allow the ‘chippings’ to clear the drill by drilling a small amount at a time

6. Follow all teacher instructions carefully