Changing a DeWalt miter saw blade involves a straightforward process: unplug the saw, secure the blade, loosen the arbor bolt (usually with a wrench, the size depends on the model; refer to your manual), remove the old blade, install the new blade ensuring correct rotation, tighten the arbor bolt, and finally, replace the blade guard. This guide will walk you through each step of the dewalt miter saw blade replacement in detail.
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Preparing for Your DeWalt Miter Saw Blade Replacement
Before you even think about changing miter saw blade dewalt, preparation is key for safety and efficiency.
Safety First: Essential Gear and Precautions
Your safety is paramount. Before you begin any dewalt miter saw blade installation, gather these essential items:
- Safety Glasses: Protect your eyes from flying debris.
- Work Gloves: Provide a better grip and protect your hands.
- Ear Protection: Miter saws can be loud; protect your hearing.
- The Correct Wrench: Determine the dewalt miter saw blade wrench size needed for your specific model. Consult your saw’s manual if you’re unsure.
Important Precautions:
- Unplug the Saw: This is the MOST important step. Ensure the saw is completely disconnected from the power source to prevent accidental activation.
- Clear Your Workspace: Ensure you have ample room to maneuver and that your workspace is free from clutter.
- Read the Manual: Familiarize yourself with your specific DeWalt miter saw model’s instructions. Manuals contain vital information specific to your saw.
Gathering Your Tools and Materials
Besides safety gear, you’ll need:
- The Correct Replacement Blade: Choosing the right blade is crucial. Consider the material you’ll be cutting (wood, metal, plastic) and the desired cut quality (fine, rough). Ensure the blade’s arbor size matches your saw.
- Wrench: The correct size for loosening and tightening the arbor bolt.
- A Block of Wood (Optional): Can be used to help secure the blade during loosening and tightening.
- Clean Cloth: To wipe down the arbor and new blade.
- Blade Cleaner (Optional): To clean any grime from the blade.
Choosing the Right DeWalt Miter Saw Blade
Selecting the appropriate blade is as vital as performing the dewalt blade change procedure correctly. Here’s a quick guide:
Blade Type | Material | Tooth Count | Cut Quality | Notes |
---|---|---|---|---|
General Purpose | Wood, Soft Metals | 40-60 | Good | Versatile for various projects. |
Fine Finish | Wood | 60-80 | Excellent | Ideal for smooth, splinter-free cuts. |
Metal Cutting | Metal | 80+ | Good | Designed specifically for cutting metal. Use with appropriate lubricant. |
Framing | Wood | 24-40 | Acceptable | Good for fast, rough cuts in framing lumber. |
Multi-Material | Various | Varies | Varies | Capable of cutting wood, plastic, and some non-ferrous metals. |
Step-by-Step: DeWalt Miter Saw Blade Removal
This section details how to remove dewalt miter saw blade.
Step 1: Locate the Arbor Lock
The dewalt miter saw blade arbor lock is a crucial component. It prevents the blade from rotating while you loosen or tighten the arbor bolt. It’s usually a button or lever located near the blade. Consult your saw’s manual if you’re having trouble finding it.
Step 2: Engaging the Arbor Lock
- Position the Blade: Manually rotate the blade until the arbor lock engages. You should feel it click into place. If it doesn’t engage, slightly adjust the blade’s position.
- Ensure it’s Locked: Once engaged, the blade should be firmly locked and unable to rotate.
Step 3: Loosening the Arbor Bolt
Important Note: The arbor bolt on DeWalt miter saws typically has a left-hand thread. This means you need to turn the bolt clockwise to loosen it.
- Position the Wrench: Place the wrench securely on the arbor bolt.
- Apply Pressure: While holding the arbor lock engaged, firmly apply clockwise pressure to the wrench. It may require some force, especially if the bolt is tightly secured.
- Use a Block of Wood (Optional): For added security, you can place a block of wood against the blade to prevent it from rotating while applying force.
- Loosen the Bolt: Once the bolt breaks free, continue turning it clockwise until it’s loose enough to remove by hand.
Step 4: Removing the Blade Guard
Some DeWalt miter saws require partial or complete dewalt miter saw blade guard removal to access the blade. Consult your saw’s manual for specific instructions. Typically, this involves loosening a screw or two, allowing you to pivot or remove the guard. Important: Replace the guard immediately after changing the blade.
Step 5: Removing the Old Blade
- Remove the Arbor Bolt and Washer: Completely unscrew the arbor bolt and remove any washers or flanges. Keep these parts together in a safe place.
- Carefully Remove the Blade: Gently slide the old blade off the arbor. Be mindful of the teeth, as they can be sharp.
Step-by-Step: DeWalt Miter Saw Blade Installation
Now that you’ve removed the old blade, let’s focus on the dewalt miter saw blade installation.
Step 1: Cleaning the Arbor and Flanges
Before installing the new blade, thoroughly clean the arbor and flanges with a clean cloth. This removes any sawdust or debris that could interfere with proper blade seating.
Step 2: Installing the New Blade
- Check Blade Rotation: Look for the arrow on the blade indicating the correct rotation direction. It should match the arrow on the saw’s blade guard.
- Position the Blade: Carefully slide the new blade onto the arbor, ensuring it sits flush against the inner flange.
- Replace the Flange and Washer: Reinstall the outer flange and washer in the correct order. Ensure they are properly aligned.
Step 3: Tightening the Arbor Bolt
Remember: The arbor bolt has a left-hand thread.
- Hand-Tighten the Bolt: Screw the arbor bolt in by hand, turning it counter-clockwise.
- Engage the Arbor Lock: Engage the arbor lock again to prevent the blade from rotating.
- Tighten with the Wrench: Use the wrench to firmly tighten the arbor bolt, turning it counter-clockwise. Apply sufficient force to secure the blade, but avoid over-tightening, which could damage the threads.
Step 4: Reinstalling the Blade Guard
If you removed the blade guard, reinstall it now, following the reverse of the dewalt miter saw blade guard removal procedure. Ensure it’s securely fastened and functions properly.
Final Checks and Testing
Before you start cutting, perform these final checks:
- Blade Security: Double-check that the blade is securely fastened and doesn’t wobble.
- Arbor Lock Functionality: Verify that the arbor lock engages and disengages smoothly.
- Blade Guard Operation: Ensure the blade guard moves freely and covers the blade effectively.
- Test Cut: Make a test cut on a scrap piece of wood to ensure the blade is cutting smoothly and accurately.
Troubleshooting Common Issues
Encountering problems during the miter saw blade change instructions dewalt? Here’s how to address some common issues:
- Arbor Bolt Stuck: Apply penetrating oil to the bolt and let it sit for a few minutes. Use a longer wrench for more leverage. If all else fails, consult a professional.
- Blade Wobbles: Ensure the blade is properly seated against the flanges and that the arbor bolt is tightened sufficiently. Check the blade for damage or warping.
- Arbor Lock Not Engaging: Ensure the blade is properly aligned when engaging the lock. Clean any debris from the locking mechanism.
- New Blade Cuts Poorly: Verify that you’re using the correct blade for the material you’re cutting. Check the blade for damage. Make sure you are feeding the material at the correct speed.
Maintaining Your DeWalt Miter Saw Blade
Proper maintenance extends the life of your miter saw blade and ensures optimal performance.
- Regular Cleaning: Clean the blade regularly with a blade cleaner to remove resin and pitch buildup.
- Proper Storage: Store blades in a dry, protected environment to prevent rust and damage.
- Sharpening: Consider sharpening your blades when they become dull. Professional sharpening services are available.
- Inspect Regularly: Inspect blades for damage, such as chipped teeth or warping, before each use.
Frequently Asked Questions (FAQ)
- What size wrench do I need for my DeWalt miter saw blade? The wrench size varies depending on the model. Consult your saw’s manual for the correct size, but common sizes are 13mm, 19mm, and 22mm.
- Can I use a different brand of blade on my DeWalt miter saw? Yes, as long as the blade’s arbor size matches your saw and the blade is designed for miter saw use.
- How often should I change my miter saw blade? The frequency depends on usage and the materials you’re cutting. Replace the blade when it becomes dull, damaged, or no longer cuts cleanly.
- Is it difficult to change a miter saw blade? No, it’s a relatively simple process that can be completed in a few minutes with the right tools and precautions. This dewalt miter saw blade removal guide helps.
- Why is my miter saw blade smoking when I cut? This can be caused by a dull blade, cutting too fast, or cutting hard materials. Ensure your blade is sharp and use the appropriate cutting speed.
- What do I do if I strip the arbor bolt? If you strip the arbor bolt, you will need to replace it. Contact DeWalt or an authorized service center for a replacement bolt.
By following these miter saw blade change instructions dewalt diligently, you can ensure a safe and efficient blade replacement process, keeping your DeWalt miter saw in top working condition for years to come. Remember to always prioritize safety and consult your saw’s manual for specific instructions.

Hi, I’m Tom Scalisi, and welcome to The Saw Blog! I started this blog to share my hands-on experience and insights about woodworking tools—especially saws and saw blades. Over the years, I’ve had the chance to work with a wide range of tools, and I’m here to help both professionals and hobbyists make informed decisions when it comes to selecting and using their equipment. Whether you’re looking for in-depth reviews, tips, or just advice on how to get the best performance out of your tools, you’ll find it here. I’m excited to be part of your woodworking journey!