High-Quality left hand drill bits

Left hand drill bits, designed to remove broken screws and bolts, are a valuable addition to any toolbox. This guide explores the benefits of using high-quality left hand drill bits, factors to consider when choosing the right one, and how to use them effectively. We will also provide recommendations for top-rated options available in the market.

Understanding Left Hand Drill Bits

What are Left Hand Drill Bits?

Unlike standard drill bits, left hand drill bits are engineered with a left-handed helix. This design serves a crucial purpose: when used to drill into a broken fastener (screw, bolt, or stud), the counter-clockwise rotation can often grip the fastener and back it out without the need for extraction tools.

Benefits of Using High-Quality Left Hand Drill Bits

Efficient Fastener Removal: The primary advantage is the ability to remove broken fasteners quickly and easily.
Reduced Damage: By backing out the fastener, you minimize the risk of further damage to the surrounding material.
Time-Saving: Compared to other extraction methods, using high-quality left hand drill bits can save significant time and effort.
Versatility: They can be used on a variety of materials, including steel, aluminum, and plastic.

Choosing the Right Left Hand Drill Bits

Material and Construction

The material of the drill bit significantly impacts its performance and longevity. Common materials include:

High-Speed Steel (HSS): A versatile and affordable option suitable for general-purpose drilling.
Cobalt Steel: Offers superior heat resistance and durability, ideal for drilling into harder materials like stainless steel.
Titanium Coating: A coating applied to HSS bits to increase surface hardness and reduce friction.

For demanding applications, consider cobalt steel or titanium-coated bits. HSS bits are a cost-effective choice for lighter tasks.

Size and Set Options

Left hand drill bits are available in various sizes, typically measured in inches or millimeters. It's essential to select a size that is slightly smaller than the broken fastener's diameter. Sets offer a range of sizes to accommodate different applications. A good set will typically start with sizes around 1/16' and go up to 1/4' or larger in 1/32' increments.

Brand Reputation and Reviews

Choosing a reputable brand can ensure quality and performance. Look for brands known for producing durable and reliable tools. Reading customer reviews can provide valuable insights into real-world performance and potential issues.

How to Use Left Hand Drill Bits Effectively

Preparation and Safety

Before using left hand drill bits, take the following precautions:

Wear Safety Glasses: Protect your eyes from flying debris.
Use a Center Punch: Create a pilot point in the center of the broken fastener to guide the drill bit.
Secure the Workpiece: Ensure the workpiece is firmly clamped or secured to prevent movement.

Drilling Technique

Start Slowly: Begin drilling at a slow speed to prevent the drill bit from wandering.
Apply Consistent Pressure: Apply steady and even pressure to allow the bit to cut effectively.
Use Cutting Oil: Lubricate the drill bit with cutting oil to reduce friction and heat buildup.
Monitor Progress: Watch for signs of the fastener backing out. If it doesn't budge, consider using a larger drill bit or another extraction method.

Troubleshooting Common Issues

Drill Bit Slipping: Ensure the center punch mark is deep enough and the drill bit is properly aligned.
Drill Bit Breaking: Use the correct drill speed and pressure. Avoid excessive force.
Fastener Not Budging: Try using a larger drill bit or apply heat to the fastener to loosen it.

Recommended High-Quality Left Hand Drill Bits

Here are a few recommended high-quality left hand drill bits currently available. Product specifications are sourced from the manufacturer’s website and online retailers, last accessed on October 26, 2023.

Brand	Model	Material	Features
Irwin Tools	Screw Extractor and Drill Bit Set	HSS	Includes both drill bits and screw extractors for versatile use.
Milwaukee	Thunderbolt Left Hand Drill Bit Set	HSS	Designed for speed and durability, with a unique Thunderbolt flute design.
Drill Hog	Left Hand Drill Bit Set	M7 Steel	Exceptionally tough and durable; specifically made for stainless steel applications. Drill Hog products are known for their strength.

Where to Buy High-Quality Left Hand Drill Bits

High-quality left hand drill bits can be purchased from various sources, including:

Online Retailers: Amazon, eBay, and other online marketplaces offer a wide selection of drill bits from various brands.
Hardware Stores: Local hardware stores typically stock a range of drill bits, including left-handed options.
Specialty Tool Suppliers: Suppliers like Wayleading Tools, that are focused on providing quality tools, often carry a broader selection of specialized drill bits.

Conclusion

Investing in high-quality left hand drill bits can save you time, money, and frustration when dealing with broken fasteners. By understanding the different types of drill bits, choosing the right size and material, and using proper drilling techniques, you can effectively remove broken screws and bolts without causing further damage. Consider the recommendations and resources provided in this guide to find the best left hand drill bits for your needs.