I’ll never forget my first attempt at building a bookshelf with my dad’s old corded saw. It was heavy, the cord got tangled, and I nearly gave up! Then I discovered the DeWalt 20V battery circular saw, and it was a game-changer. This cordless tool is light, powerful, and perfect for beginners, hobbyists, and even pros. In this article, I’ll share why this saw rocks, how to use it, and simple projects to try. Whether you’re cutting wood for a birdhouse or tackling a deck, I’ve got you covered with tips, tricks, and easy examples.
What Is a DeWalt 20V Battery Circular Saw?
A DeWalt 20V battery circular saw is a cordless tool that cuts wood, metal, or plastic with a spinning blade. It runs on a 20-volt battery, so you’re not stuck near a power outlet. It’s light, easy to carry, and great for small or big projects. I love how it frees me to work anywhere—my backyard, a friend’s garage, or even a remote campsite! DeWalt makes models like the DCS570B (7-1/4 inch blade) and DCS391B (6-1/2 inch blade), each suited for different tasks.
Why It Matters
This saw is a big deal because it’s portable and strong. You can cut a 2×4 in seconds or slice plywood for a treehouse. It’s perfect for DIYers who want to build without fuss. Plus, it’s safer than corded saws—no tripping over cords!
Why Choose the DeWalt 20V Battery Circular Saw?
I’ve used a few saws, and the DeWalt 20V stands out. Here’s why:
- No Cord, No Problem: Work anywhere without plugging in.
- Lightweight: At about 7-8 pounds, it’s easy to handle.
- Powerful: Cuts through thick wood like butter with 5,000+ RPM.
- Long Battery Life: A 5Ah battery lasts for hours of cutting.
But it’s not perfect. The battery can run out mid-project, so keep a spare. Also, it’s pricier than corded saws, but the freedom is worth it for me.
Getting Started: What You Need
Before you cut, grab these basics:
- DeWalt 20V Battery Circular Saw: Models like DCS570B (tool only, $139) or DCS391P1 (with battery, $229).
- Batteries: A 5Ah or 6Ah battery for longer use. I use 5Ah for small jobs.
- Charger: DeWalt’s DCB115 works fast.
- Blades: A 7-1/4 inch or 6-1/2 inch carbide-tipped blade (40-tooth for smooth cuts).
- Safety Gear: Glasses, gloves, and ear protection—safety first!
- Wood: Start with 2x4s or 3/4-inch plywood for practice.
Table 1: Comparing DeWalt 20V Models
| Model | Blade Size | Weight (lbs) | RPM | Best For |
|---|---|---|---|---|
| DCS570B | 7-1/4 inch | 7.9 | 5,500 | Framing, decks |
| DCS391B | 6-1/2 inch | 7.0 | 5,150 | Plywood, small jobs |
| DCS573B | 7-1/4 inch | 8.2 | 5,500 | Heavy-duty tasks |
Caption: Choose DCS570B for bigger projects, DCS391B for lighter tasks.
How to Use Your DeWalt 20V Battery Circular Saw
Using this saw is a piece of cake if you follow these steps. I learned the hard way—my first cut was crooked because I rushed!
Step-by-Step Guide to Cutting
- Charge Your Battery: Pop a 5Ah battery into the charger. It’s ready in about 45 minutes.
- Pick Your Blade: Use a 40-tooth blade for clean cuts on plywood.
- Set Up Your Wood: Clamp your wood to a workbench. I use two sawhorses.
- Adjust the Depth: Set the blade to cut 1/4 inch deeper than your wood.
- Mark Your Cut: Draw a straight line with a pencil and square.
- Cut Slowly: Hold the saw firmly, pull the trigger, and guide it along the line.
- Check Your Work: Smooth edges mean you did it right!
Visual Idea
- Diagram 1: A simple sketch showing how to clamp wood on sawhorses and mark a straight line.
- Diagram 2: A side view of the saw’s blade depth adjustment for cutting a 2×4.
Easy Projects to Try
Here are two fun projects to practice with your DeWalt 20V battery circular saw. They’re perfect for beginners and make great gifts!
Project 1: Build a Simple Birdhouse
- Materials: 1/2-inch plywood, screws, wood glue.
- Steps:
- Cut four 6×6-inch squares for walls.
- Cut two 8×6-inch pieces for the roof.
- Cut a 2-inch circle for the bird hole.
- Screw and glue pieces together.
- Tip: Sand edges for a smooth finish. My first birdhouse was a hit with my neighbor’s sparrows!
Project 2: Create a Small Bookshelf
- Materials: 3/4-inch plywood, screws, paint.
- Steps:
- Cut two 24×12-inch pieces for sides.
- Cut three 12×12-inch pieces for shelves.
- Screw shelves between sides.
- Paint it your favorite color.
- Tip: Use a 24-tooth blade for faster cuts on plywood.
Visual Idea
- Diagram 3: A labeled drawing of a birdhouse with measurements for each piece.
Tips for Success
Here’s what I’ve learned from using my DeWalt saw:
- Use a Sharp Blade: A dull blade makes rough cuts. I swap mine every few months.
- Keep Batteries Charged: Always have a backup battery for big projects.
- Practice First: Try cutting scrap wood to get the hang of it.
- Avoid Kickback: Don’t push the saw too hard. Let it do the work.
Table 2: Common Mistakes and Fixes
| Mistake | Fix |
|---|---|
| Crooked cuts | Use a straight edge or guide. |
| Battery dies fast | Use a 5Ah or higher battery. |
| Blade binds | Slow down and check wood alignment. |
Caption: Avoid these mistakes to make clean, safe cuts.
Benefits and Drawbacks
Benefits
- Portable: No cords mean you can work anywhere.
- Fast: Cuts 2x4s in seconds with a 5,500 RPM motor.
- Versatile: Handles wood, metal, and more with the right blade.
Drawbacks
- Battery Cost: Extra batteries add up ($50-$100 each).
- Less Power: Not as strong as 60V models for thick hardwoods.
- Learning Curve: Takes practice to cut straight.
Alternative Approach
If you need more power, try the DeWalt 60V FlexVolt saw (DCS578B). It’s heavier but cuts thicker wood easily. For small jobs, a 6-1/2 inch blade like the DCS391B is lighter and cheaper.
My Personal Insights
My first big project with the DeWalt 20V saw was a backyard deck. I was nervous, but the saw’s light weight and easy controls made it a breeze. I cut 2×6 boards all day with one 5Ah battery! My tip? Always double-check your measurements. I wasted a board once because I didn’t. Also, clean the saw’s blade guard after every job—it keeps it running smoothly.
Table 3: Cost-Saving Tips
| Tip | How It Saves Money |
|---|---|
| Buy tool-only | Use existing DeWalt batteries. |
| Get a blade pack | Multi-packs cost less per blade. |
| Shop sales | Look for deals on Amazon or Home Depot. |
Caption: Save cash with these simple tricks.
Frequently Asked Questions
What Is the Best DeWalt 20V Battery Circular Saw for Beginners?
The DCS391B is great for beginners. It’s light, easy to use, and perfect for small projects like cutting plywood or 2x4s. Pair it with a 5Ah battery for longer use.
How Long Does the Battery Last?
A 5Ah battery lasts about 1-2 hours of cutting, depending on the wood. For bigger jobs, keep a spare battery charged.
Can It Cut Metal or Plastic?
Yes, with the right blade! Use a metal-cutting blade for aluminum or a fine-tooth blade for plastic. Always wear safety gear.
How Do I Keep Cuts Straight?
Draw a line and use a straight edge or clamp as a guide. Go slow and let the saw do the work.
Is It Safe for Kids to Use?
No, it’s not safe for kids. Always supervise teens and teach them safety rules, like wearing glasses and gloves.
What’s the Difference Between 6-1/2 and 7-1/4 Inch Models?
The 6-1/2 inch (DCS391B) is lighter and better for thin materials. The 7-1/4 inch (DCS570B) cuts deeper for thicker wood.
Where Can I Buy It?
Check Amazon, Home Depot, or DeWalt’s website. Tool-only models are cheaper if you have batteries. Look for sales!
Conclusion
The DeWalt 20V battery circular saw is your ticket to easy, cord-free cutting. Whether you’re building a birdhouse or a bookshelf, it’s light, strong, and fun to use. Try a simple project, like the ones I shared, and you’ll be amazed at what you can create. Got a cool project idea? Share it with friends or on social media! Grab your saw, stay safe, and start cutting—it’s a total blast!