Construction And Maintenance

Construction And Maintenance

A Comprehensive Guide On Cord Drills

Cord Drills: Efficiency and Versatility in Power Tools

A cord drill, commonly known as an electric drill, is an essential power tool used in construction, woodworking, metalworking, and many other industries. It is a versatile tool that makes drilling holes and driving fasteners simple and effortless.

Understanding the mechanism of a cord drill is crucial when selecting the right tool for the job. A cord drill works by converting electric energy into mechanical energy. The motor inside the drill spins the drill bit at a high speed, which can be controlled using the trigger. The speed variation offers control and adaptability to various materials and applications.

The power of a cord drill is determined by its voltage, typically ranging from 7.2 volts to 20 volts. Cord drills with higher voltage ratings are more powerful and can handle tougher materials and tasks, such as drilling into Hard Metals or concrete. However, they are usually heavier and more expensive.

The two primary types of cord drills are the keyed and keyless models. Keyed drills require a special key to tighten or loosen the chuck, the part of the drill that holds the drill bit. Keyless drills, on the other hand, can be tightened by hand, which is often more convenient.

When it comes to the drill bits, these are varied with designs to suit specific materials and hole sizes. For example, Hard Metals require twist drill bits made from cobalt or carbide, as they provide the necessary hardness and heat resistance. For softer materials like wood, a brad-point drill bit is often used as it provides high accuracy.

The use of a cord drill requires some care, especially safety precautions. Never use a cord drill in wet or damp conditions unless it’s specifically designed for that. Always wear appropriate safety gear, including safety glasses and gloves. Before starting, secure the workpiece firmly, and ensure the drill bit is tightly inserted into the chuck.

Other features of cord drills include hammer action, variable speed, reverse function, and torque control. Hammer action helps with drilling into hard materials as it produces a rapid succession of blows to the material. Variable speeds allow for control over the drilling speed, which is essential when dealing with different materials. The reverse function can be used for removing screws or drilling bits, while torque control is essential for precise screwdriving.

Maintenance of the cord drills includes periodic cleaning of the air vents, chuck, and motor. Besides, make sure to inspect the cord for any damages before usage. Like any other power tool, storing your cord drill properly will extend its lifespan. Keep the cord drill in its original case or a tool bag, protect it from moisture, and store it in a dry place.

In conclusion, cord drills are a vital part of any toolkit due to their utility and flexibility. From drilling into Hard Metals to driving screws into wood, they serve a wide spectrum of applications in professional and hobbyist settings. By understanding their operation, types, features, safety precautions, and maintenance practices, you can select and use cord drills more effectively.

Oil Sector The Pros And Cons

Submitted by: Christian Garrington

Despite one of the worst global financial meltdowns in the last 70 years, the oil and gas industry seems to have emerged out of the recession relatively untouched. Rather than cut jobs and rein in on expenditure and exploration, the industry has adopted a policy of wait and see by freezing wages and basically keeping the industry on tickover. The policy seems to have paid off as the world finally starts to see light at the end of the economic tunnel, the oil and gas industry is poised to take full advantage of the upturn in demand for supplies as industry presses the on button.

A wealth of opportunities

For oil and gas jobs, this presents a wealth of new opportunities. The world s dependency on oil and gas products is growing, not receding. Although alternative fuels are very much on the agenda for everyone, the exploration of the planet s natural resources continues unabated. This means new methods of extraction, deep drilling and oil sands, which in turn equates to a plethora of new opportunities for those looking for a career move into a boom industry.


On the face of it there are plenty of pros in making the move into an oil and gas job. The most obvious one for anyone looking for a long-term career is the pay. Oil and gas jobs have a reputation for paying well, even at entry-level positions. Hard work is well rewarded, with basic drilling jobs paying up to US$50,000 a year. The more experience a candidate has, the greater the rewards and graduates going into oil and gas jobs can expect to be paid much more than in other graduate positions in alternative industries.

Career advancement is also high on the list, with hard work again being rewarded by rapid promotion. Candidates who show initiative, good team working skills and determination can quickly rise up through the ranks to more responsible positions. Roustabouts, the most common entry-level position, can become drillers in a matter of a few years, making oil and gas jobs ideal for those who want a career but may not have the formal qualifications to go into more academically demanding jobs.

For those who want to see a bit of the world, oil and gas jobs present the ideal opportunity to travel abroad, as the industry is an international one. From the offshore platforms of the North Sea to new fields opening up in Australia, there is a wealth of chances to travel and be part of a global industry, as well as earning a good salary.

Still a dangerous occupation

So what are the cons to oil and gas jobs? Recent events in the Gulf of Mexico have emphasised that, although one of the most high-tech of industries, oil exploration is still a dangerous occupation. Safety is a primary concern within the oil and gas industry, but if you are thinking about going into the sector then you must be aware that, like most heavy industry, it does carry its own particular risks.

Rig work in particular is hard, gruelling and very dirty work. For those who like to wear a collar and tie to work, careers in oil and gas are still available, but perhaps within a different context such as research and development, personnel and what are termed as upstream jobs. The nature of the work means that you may spend long periods away from home, so for candidates with families, the separation can be hard to deal with initially. However, rig teams build close ties and many consider their rig colleagues to be a second family , forming bonds that can last a lifetime.

If you re prepared to work hard, use your initiative and don t mind getting your hands a little dirty, oil and gas jobs can offer a chance to develop a career, rather than just another nine to five job.

About the Author: Paul B Smith – Search

oil and gas jobs

and other engineering roles in specialist sectors: automotive & aerospace, petrochemical & process, mining & minerals, nuclear & power. Candidates can register CVs online and search jobs across all of our sectors.


Permanent Link: