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How to Master the Art of Using a Left Hand Drill Bit with your Power Drill

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Written By John Gibbs

 

 

 

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Are you wondering how to use a left hand drill bit? This guide will provide you with the steps necessary to properly and safely use a left hand drill bit. From understanding the anatomy of the drill bit to learning the proper technique for drilling, this step-by-step guide will help ensure your project is a success. So, if you’re ready to learn how to use a left hand drill bit, let’s get started.

What is a Left Hand Drill Bit?

What Is A Left Hand Drill Bit?

A left hand drill bit is a special type of drill bit designed to be used when removing screws and bolts. It has a left-handed thread that allows it to be used in reverse to unscrew a fastener instead of drilling into it. Left hand drill bits are usually used for removing stuck fasteners such as screws, bolts, and nuts that are difficult to remove.

The left hand drill bit is unique compared to standard drill bits because it is designed to be used in reverse. It has a left-handed thread that twists counterclockwise instead of the clockwise motion of a standard drill bit. This allows the drill bit to unscrew fasteners instead of drilling into them.

Left hand drill bits are also used for removing broken off bolts and screws. When a bolt or screw breaks off in a hole, a left hand drill bit can be used to unscrew the broken fastener. The left hand thread allows the drill bit to spin in reverse, helping to loosen the fastener and eventually removing it.

Type of Drill Bit Thread Direction Use
Standard Clockwise Drilling into materials
Left Hand Counterclockwise Removing screws and bolts

Left hand drill bits are essential when it comes to removing stuck or broken fasteners. They are used for everything from removing broken bolts to unscrewing stuck screws. When dealing with a stubborn fastener, a left hand drill bit is the way to go for quickly and effectively removing it.

Benefits of Using a Left Hand Drill Bit

Benefits Of Using A Left Hand Drill Bit

Left hand drill bits are used for various applications, especially when drilling into metal. Not only are they more efficient than regular drill bits, they also offer many other benefits. Here are some of the advantages of using a left hand drill bit:

High Durability: The flutes on left hand drill bits are designed in a way that allows for greater torque and more stability during drilling. This makes them more durable than regular drill bits and better able to withstand the wear that is associated with metalworking.

Improved Accuracy: Left hand drill bits are designed to cut in a left-handed direction, which helps to improve accuracy when drilling into metal. This is especially useful when drilling small holes, as the drill bit will be able to move in a straight line with minimal deviation.

Faster Drilling: Left hand drill bits are able to cut through metal faster than regular drill bits due to their design. This is because the left-handed cutting direction creates less resistance, allowing the drill bit to move faster. This makes them ideal for jobs that require quick and accurate drilling.

Greater Versatility: Left hand drill bits are also more versatile than regular drill bits, as they can be used for a variety of different tasks. They can be used to drill into metal, wood, and other materials, making them a great choice for a wide range of projects.

Overall, left hand drill bits are a great choice for metalworking applications. Not only are they more durable and accurate, they also provide a faster drilling process and greater versatility. Therefore, if you are looking for a drill bit that is suitable for a variety of tasks, then a left hand drill bit is definitely worth considering.

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How to Use a Left Hand Drill Bit

How To Use A Left Hand Drill Bit

Identify the Type of Drill Bit

The first step in using a left hand drill bit is to identify the type of bit you need. There are several types available, including masonry, metal, and wood bits. Depending on the material you need to drill through, you will need the appropriate bit for the job.

Select the Right Size of Bit

After selecting the appropriate type of bit, you need to choose the correct size. The size of the bit should match the size of the hole you are trying to drill. It is important to use the correct size to avoid damaging the material you are drilling into.

Secure the Bit in the Chuck

Once you have chosen the right size of bit, you will need to securely attach it to the drill. To do this, you will need to insert the bit into the chuck, making sure it is tightly secured. It is important to ensure that the bit is firmly attached to the drill before proceeding.

Mark the Position of the Bit

Before beginning to drill, you should mark the position of the bit with a pencil or marker. This will ensure that you drill in the correct position and don’t end up drilling in the wrong place.

Drill the Hole

Once the bit is secure and the position is marked, you can begin to drill the hole. Start the drill at a low speed and gradually increase the speed as you go. This will help to avoid any damage to the material you are drilling into.

Remove the Bit

Once you have finished drilling, you should remove the bit from the chuck. To do this, simply loosen the chuck and remove the bit. Make sure that the bit is securely stored away for future use.

How to Use a Left Hand Drill Bit to Remove a Bolt

If you need to remove a bolt, you can use a left hand drill bit to do so. To begin, you should insert the bit into the head of the bolt and start the drill at a low speed. Gradually increase the speed until the bolt comes loose.

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Before drilling into the bolt, it is important to make sure that the bit is firmly secured in the chuck.

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Once the bit is firmly secured in the chuck, you can begin to drill into the bolt. Make sure to start at a low speed and gradually increase the speed as you go.

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Keep drilling until the bolt comes loose. If the bolt is stuck, you may need to use a higher speed or a different bit.

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Once the bolt is removed, you should remove the bit from the chuck and store it away for future use.

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If you need to buy a left hand drill bit, you can purchase them online or at your local hardware store.

Where to Buy Left Hand Drill Bits

Left hand drill bits are available at most hardware stores, home improvement stores, and online retailers. Before purchasing check to make sure the bit you are buying is specifically designed for left handed use. Most stores and online retailers will have specific categories or search tags for left hand drill bits. Prices for left hand drill bits vary depending on size, material, and brand, so be sure to shop around for the best deals.

For those looking for more specialized left hand drill bits, industrial suppliers, metalworking suppliers, and tool and die supply stores are good places to start. They usually carry a wider selection of kits, sets, and individual bits than most home improvement stores.

Finally, for those who are looking for the convenience of shopping online, there are many websites that specialize in metalworking tools, such as McMaster-Carr and Grainger. They offer a wide selection of left hand drill bits and other metalworking tools, as well as kits and sets.

Frequently Asked Questions

What Type of Safety Gear Should I Wear When Using a Left Hand Drill Bit?

When using a left hand drill bit, it is essential to wear the appropriate safety gear to protect yourself from potential hazards. This includes eye protection, such as safety glasses or a face shield, and hearing protection, such as earmuffs or ear plugs. Additionally, you should wear a dust mask to prevent inhalation of particles created by drilling, and a hard hat to protect your head from any falling debris. Lastly, you should wear heavy-duty work gloves to protect your hands when handling the drill bit or other tools.

Are there any special precautions I should take when using a left hand drill bit?

  • Wear eye protection: Always wear safety glasses when using a left hand drill bit. Debris and metal shavings can fly off the bit when drilling and can cause serious eye injury.
  • Secure the workpiece: Make sure the workpiece is firmly secured in a vise or clamped down to a workbench before beginning to drill. If the workpiece is not secured, it can move or spin when the drill bit is engaged, leading to injury or poor results.
  • Start slow and increase speed gradually: When drilling, start at a low speed and gradually increase the speed of the drill as the bit penetrates deeper into the material. This will help to ensure that the bit does not overheat and will result in cleaner, more accurate holes.
  • Use a lubricant: When drilling hard materials, it is important to use a lubricant such as cutting oil. This will help to reduce friction and heat, which can cause the bit to overheat and become dull.
  • Use a center punch: Using a center punch will help ensure that the bit does not wander when drilling.
  • Drill straight: Make sure to keep the drill bit as straight as possible when drilling. This will help to ensure that the hole is not crooked or off center.

What type of drill bit should I use for a left hand drill bit?

The type of drill bit used for a left hand drill bit depends on the material being drilled. Generally, a high-speed steel (HSS) drill bit is recommended for drilling through soft materials such as wood and plastic. For drilling through harder materials, such as metal, a split-point tipped drill bit is recommended. A split-point drill bit has a self-centering tip that helps to reduce the risk of wandering and to ensure the drill bit stays on track.

What is the Best Way to Ensure the Left Hand Drill Bit is Securely Attached to the Drill?

Ensure a secure attachment of the left hand drill bit to the drill by using the chuck key to tighten the jaws of the drill around the shank of the drill bit. Make sure the drill bit is inserted all the way into the chuck and that the jaws of the drill are tightened securely to prevent the drill bit from slipping while in use.

Is it possible to use a left hand drill bit with an electric drill?

Yes, it is possible to use a left hand drill bit with an electric drill. A left hand drill bit is specially designed to provide a reverse rotation when used in an electric drill. This helps to prevent the bit from getting stuck in the material being drilled, allowing a quicker and more efficient drilling process. To use a left hand drill bit, it’s important to ensure that the electric drill is set to the reverse rotation setting.

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Conclusion

Using a left hand drill bit is a great way to improve the accuracy of your drilling. When used correctly, it can make the job easier and more efficient. Make sure to select the correct drill bit for the job and follow the steps outlined in this guide to ensure a successful drilling experience.

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About John Gibbs

Hello everyone! My name is John Gibbs. I am 60 years old and have been in the family construction business all my adult life. Construction is not only my profession but also my passion. I know everything about building and repair materials, tools, advanced methods, techniques, and approaches. I will share the same knowledge with you in my articles.

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