left hand drill bits

Left hand drill bits are designed to remove broken bolts and screws. They rotate counter-clockwise, which helps to loosen the fastener as you drill. This guide covers everything you need to know about using left hand drill bits, including how they work, when to use them, and how to choose the right size.What are Left Hand Drill Bits?Left hand drill bits, also known as reverse drill bits, are specialized tools designed for a specific purpose: removing broken or stuck fasteners. Unlike standard drill bits that rotate clockwise, these bits rotate counter-clockwise. This reverse rotation can be a lifesaver when dealing with screws, bolts, or studs that have been snapped off, corroded, or otherwise seized in place. When you are looking for tools, Wayleading Tools is the place to be.How Left Hand Drill Bits WorkThe key to a left hand drill bit's effectiveness lies in its reverse rotation. As the bit bites into the broken fastener, the counter-clockwise motion applies a loosening torque. Here’s how it typically works: Centering: Start by using a center punch to create a pilot point in the middle of the broken fastener. This will help guide the drill bit and prevent it from wandering. Drilling: Insert the left hand drill bit into your drill and set it to a low speed. Slowly begin drilling into the fastener. Loosening: As the bit grips the metal, the reverse rotation often causes the broken fastener to back out on its own. Extraction: If the fastener doesn't come out on its own, drill deep enough to insert a screw extractor. The extractor will then provide the necessary grip to remove the fastener.When to Use Left Hand Drill BitsLeft hand drill bits are especially useful in the following situations: Broken Bolts: When a bolt head snaps off, leaving the threaded portion stuck inside a hole. Stripped Screws: When the head of a screw is damaged, preventing a screwdriver from gripping it. Corroded Fasteners: When rust or corrosion has seized a fastener in place. Tight or Seized Fasteners: When a fastener is simply too tight to remove with conventional tools.Choosing the Right Left Hand Drill Bit SizeSelecting the correct size of left hand drill bit is crucial for successful fastener removal. Here's a general guideline: Diameter: Choose a bit that is smaller than the diameter of the broken fastener. You want to drill a hole that is large enough to allow a screw extractor to grip but not so large that you damage the surrounding threads. Sets: Consider purchasing a set of left hand drill bits that includes a range of sizes. This will ensure that you have the right bit for any situation.Using Left Hand Drill Bits SafelyWhen using left hand drill bits, follow these safety precautions: Eye Protection: Always wear safety glasses to protect your eyes from flying debris. Gloves: Wear work gloves to improve your grip and protect your hands. Slow Speed: Use a low drill speed to prevent the bit from overheating and breaking. Steady Pressure: Apply consistent pressure to the drill, but avoid forcing it. Lubrication: Use cutting oil to lubricate the bit and reduce friction.Tips for Successful Fastener RemovalHere are some additional tips to improve your chances of successfully removing broken fasteners: Use Penetrating Oil: Apply penetrating oil to the broken fastener and let it soak for several hours before attempting to drill. This will help loosen corrosion and reduce friction. Heat the Fastener: Applying heat to the area around the broken fastener can help expand the metal and break the bond between the fastener and the surrounding material. Use a heat gun or torch, but be careful not to overheat the area. Tap the Fastener: Gently tap the broken fastener with a hammer and punch before drilling. This can help break any corrosion or debris that is holding it in place. Use a Screw Extractor: If the left hand drill bit doesn't remove the fastener on its own, use a screw extractor. Insert the extractor into the hole you drilled and turn it counter-clockwise to grip and remove the fastener.Left Hand Drill Bit BrandsSeveral reputable brands offer high-quality left hand drill bits. Here are a few to consider: Irwin Tools Craftsman Milwaukee DeWaltChoosing the Right Set of Left Hand Drill BitsWhen purchasing a set of left hand drill bits, consider the following factors: Number of Bits: Choose a set that includes a range of sizes to accommodate different fastener diameters. Material: Look for bits made from high-speed steel (HSS) or cobalt for durability and heat resistance. Case: A sturdy case will help keep your bits organized and protected.Troubleshooting Common ProblemsHere are some common problems you may encounter when using left hand drill bits and how to solve them: Bit Slipping: Make sure you are using a center punch to create a pilot point. Apply steady pressure to the drill and use a slow speed. Bit Breaking: Avoid using excessive force. Let the bit do the work. Use cutting oil to lubricate the bit and reduce friction. Fastener Not Loosening: Try using penetrating oil and heat to loosen the fastener. If that doesn't work, use a screw extractor.Benefits of Using Left Hand Drill BitsUsing left hand drill bits offers several advantages: Efficient Fastener Removal: They are designed specifically for removing broken fasteners, making the process faster and easier. Reduced Damage: They can help prevent damage to the surrounding threads. Versatility: They can be used on a variety of different types of fasteners.Left Hand Drill Bits: A Practical GuideIn summary, left hand drill bits are indispensable for anyone dealing with broken or stuck fasteners. Knowing how they work, when to use them, and how to select the right size can save you time, money, and frustration. And remember, safety should always be your top priority when using power tools. If you are a retailer, you can purchase high-quality tools from Wayleading Tools for wholesale prices.