A jigsaw is a versatile power tool used for cutting curves, shapes, and straight lines in a variety of materials like wood, metal, and plastic. It’s perfect for beginners because it’s easy to control and requires minimal setup. This guide covers everything you need to know about what a jigsaw is used for and how to get started.
Key Takeaways
- Versatility: A jigsaw cuts curves, circles, and straight lines in wood, metal, plastic, and more.
- Easy to use: Ideal for beginners because of its light weight and simple operation.
- Blade selection matters: Choosing the right blade (tooth count, material, shank type) determines cut quality and speed.
- Speed control: Variable speed settings allow you to match cutting speed to the material.
- Pendulum action: Some jigsaws have an orbital setting that boosts cutting efficiency in thick wood.
- Safety first: Always wear eye protection and clamp your workpiece securely to avoid kickback.
- Common projects: Cutting countertops, installing flooring, crafting decorative shapes, and making plumbing cutouts.
📑 Table of Contents
Introduction
If you’ve ever wondered what a jigsaw is used for, you’re not alone. This handy tool is a staple in workshops and DIY kits, but many beginners aren’t sure exactly when to reach for it. A jigsaw is essentially a powered saw that moves its blade up and down in a rapid, reciprocating motion. That up‑and‑down action lets you cut intricate curves and shapes that other saws can’t handle.
Think of it like an electric coping saw. You can cut circles, wavy lines, or even letters out of plywood, and with the right blade, you can also cut through metal pipes, plastic sheets, and ceramic tile. Because jigsaws are lightweight and easy to maneuver, they’re a favorite for small home projects, craftwork, and remodeling tasks.
In this ultimate beginner guide, I’ll walk you through everything you need to know: what a jigsaw is used for, how to pick the right blade, essential techniques, and safety tips. By the end, you’ll feel confident enough to start your own cuts.
1. What Exactly Is a Jigsaw?
A jigsaw is a power saw with a straight, narrow blade that moves up and down. Unlike a circular saw that cuts with a rotating disc, a jigsaw’s reciprocating motion allows it to make both straight and curved cuts. The name comes from the original use of the tool: cutting intricate patterns in wood, much like a scroll saw, but with a handheld design.
Jigsaws come in corded and cordless versions. Corded models offer constant power, while cordless ones give you freedom of movement. Many modern jigsaws include features like variable speed triggers, orbital action settings, and tool‑free blade changes.
Common Parts of a Jigsaw
- Shoe (base plate): The flat part that rests on the workpiece. It helps stabilize the cut.
- Blade clamp: Holds the blade securely. Some use a hex key, others have a quick‑release lever.
- Speed control dial or trigger: Adjusts how fast the blade moves. Lower speeds for metal, higher for wood.
- Orbital action lever: Changes the blade’s cutting pattern from straight up‑and‑down to an elliptical motion for faster cuts in softer materials.
- Blade: The replaceable, toothed strip that does the cutting. Comes in various sizes and tooth counts.
2. What Is a Jigsaw Used For? A Breakdown by Material
The true answer to what is a jigsaw used for depends on what you’re cutting. It’s one of the most versatile saws you can own. Let’s go through common materials and the best ways to cut them.
Wood and Plywood
Jigsaws excel at cutting curves and shapes in wood. Whether you’re making a decorative shelf, cutting out a circle for a birdhouse, or trimming a piece of pine, a jigsaw is your tool. For clean cuts in plywood, use a fine‑tooth blade (12–20 TPI). For thicker lumber, choose a blade with fewer teeth (6–10 TPI) and use the orbital action to speed up the cut.
Metal (Sheet Metal, Pipes, and Thin Profiles)
Yes, a jigsaw can cut metal. You need a blade designed for metal – usually made from high‑speed steel (HSS) or bi‑metal, with 20–32 TPI. Use a lower speed setting and clamp the metal firmly to reduce vibration. Cutting a hole in a steel electrical box or trimming an aluminum gutter is a breeze with the right blade.
Plastic and Acrylic
Jigsaws work well on plastic sheets, PVC pipes, and acrylic panels. To avoid melting or chipping, select a blade with fine teeth (18–24 TPI) and set the speed to medium. Tape the cut line with painter’s tape to reduce splintering. This technique is great for cutting out shapes for art projects or custom window panels.
Ceramic Tile and Glass (with Caution)
Special carbide‑grit blades let you cut ceramic tile, glass tiles, and even porcelain. Use a slow speed and keep the area lubricated with water or oil to prevent overheating. This is handy for making small cutouts in tile for electrical outlets or plumbing pipes.
Laminates and Solid Surface Materials
Countertop materials like laminate, Corian, and Formica can be cut with a jigsaw. Use a fine‑tooth blade (18–24 TPI) and cut from the backside to minimize chipping. Many kitchen countertop installers rely on jigsaws for sink and cooktop cutouts.
3. Essential Jigsaw Techniques for Beginners
Now that you know what a jigsaw is used for, let’s look at how to use it effectively. These techniques will help you get cleaner cuts and avoid common mistakes.
Making Straight Cuts
Even though a jigsaw is famous for curves, it can cut straight lines too. Use a guide: clamp a straight piece of wood or a metal ruler to your workpiece. Run the jigsaw’s shoe against the guide while keeping the blade exactly on the line. This works for cutting long boards to length or ripping plywood strips.
Cutting Curves and Circles
This is where a jigsaw shines. For gradual curves, simply follow your drawn line. For tight curves (small radius), drill a starter hole near the line, insert the blade, and cut outward. For perfect circles, you can buy a circle‑cutting attachment (a pivot arm) or make your own pin guide: drive a small nail at the center, hook the jigsaw’s shoe over it, and rotate the tool.
Plunge Cuts (Starting Without an Edge)
Sometimes you need to start cutting in the middle of a sheet where there’s no existing edge. Use a plunge cut: tilt the jigsaw forward so the front of the shoe rests on the material, with the blade above the line. Turn on the saw and slowly lower the blade into the material until the shoe is flat. This is great for cutting sink openings in countertops.
Bevel Cuts
Many jigsaws allow the shoe to tilt up to 45 degrees left or right. Loosen the shoe adjustment, set the angle, and tighten. Cutting at an angle lets you create beveled edges for joining pieces, like in picture frames or decorative trim.
Using a Guide Fence
For repetitive cuts at the same width, attach a guide fence (often included with the jigsaw) to the shoe. This helps you maintain a consistent distance from the edge, perfect for cutting strips or grooves.
4. How to Choose the Right Jigsaw Blade
Your blade is the single most important factor in achieving a good cut. The answer to what is a jigsaw used for changes dramatically based on blade choice. Here’s what to look for.
Tooth Count (TPI)
- Low TPI (6–10): Fast cuts in thick wood, but rough edges. Good for rough construction.
- Medium TPI (10–20): General‑purpose wood cutting, plywood, and plastic. Balances speed and finish.
- High TPI (20–32): Smooth cuts in thin wood, metal, laminates, and acrylic. Slower but finer finish.
Blade Material
- Carbon Steel (CS): Cheap, good for wood and plastic. Dulls quickly in metal.
- High‑Speed Steel (HSS): Harder, cooks through metal and hardwood. Better durability.
- Bi‑Metal (BIM): Combines HSS teeth with a flexible carbon steel back. Best all‑around choice for metal and wood.
- Carbide‑Grit: No teeth – abrasive particles that grind through tile, glass, and masonry.
Shank Types
Most jigsaws take either a U‑shank (old style, needs a screw) or a T‑shank (modern, tool‑less change). T‑shank is now standard because it’s quicker and more secure. Always buy blades that match your saw’s shank.
5. Jigsaw Projects You Can Try Right Now
Still wondering what a jigsaw is used for in real life? Here are five beginner‑friendly projects.
DIY Cutting Board
Cut a rectangle from a walnut or maple board, then round the corners with a jigsaw. Sand the edges for a smooth grip. You’ll learn straight cuts and curves.
Wall‑Mounted Shelf Brackets
Draw a decorative shape (like a swoop or a tree outline) on a 3/4‑inch plywood piece. Use a jigsaw to cut along the line. Attach the bracket to the wall and add a shelf on top. Great for practicing curves.
Electrical Box Cutout
When installing a new outlet in drywall: mark the box location, drill a starter hole, and use a fine‑tooth blade to cut the rectangle. This is a plunge cut technique that every DIYer needs.
Metal Pipe Notching
If you’re building a metal frame or railing, use a jigsaw with a metal blade to notch pipes for welding. Mark the notch with a template, clamp the pipe, and cut slowly.
Children’s Puzzle
Cut a simple animal shape (like a fish or bunny) from 1/2‑inch plywood. You can even cut it into two or three interlocking pieces. This project builds precision and is fun.
6. Safety Tips and Common Mistakes
Using a jigsaw is safe if you follow basic precautions. Avoid these pitfalls.
Secure Your Workpiece
Never hold the material with one hand while cutting with the other. Always clamp the workpiece to a workbench or sawhorse. If the piece moves, the blade can bind and break, or the shoe can kick back.
Wear Protective Gear
Safety glasses are a must – tiny wood chips or metal filings can fly into your eyes. Earplugs are a good idea for longer cuts, and a dust mask helps if you’re cutting MDF or drywall.
Don’t Force the Saw
Let the blade do the work. Pushing too hard can cause the blade to deflect (bending the cut) or overheat, leading to breakage. If the saw slows down, ease off or adjust the speed.
Check the Blade Condition
Dull blades cause splintered edges and require more force. Replace a blade when it struggles to cut or you see burn marks on the wood. A fresh blade makes all the difference.
Mind the Cord
For corded jigsaws, keep the cord draped over your shoulder or behind you, never in front of the cut line. You don’t want the saw accidentally cutting through the cord.
Conclusion
Now you know what a jigsaw is used for: from trimming plywood to cutting metal pipes, from making intricate craft shapes to installing a kitchen sink. It’s a tool that rewards practice and patience. Start with a simple project like a curved shelf bracket or a cutout in a board. Experiment with different blades and speeds. Pretty soon you’ll reach for your jigsaw every time you need to make a non‑straight cut.
Remember to keep your blades sharp, your workpiece clamped, and your fingers clear. With the knowledge from this guide, you’re ready to tackle hundreds of projects. Go ahead and cut – you’ve got this!
Frequently Asked Questions
Can a jigsaw cut a straight line?
Yes, a jigsaw can cut straight lines, but it requires a guide or steady hand. For long straight cuts, use a clamped straight edge as a fence. For short straight cuts, let the saw follow a drawn line at a slow speed.
What is the difference between a jigsaw and a reciprocating saw?
A jigsaw has a smaller blade, moves up and down, and is designed for precise curved and straight cuts in sheets and panels. A reciprocating saw has a longer blade, moves back and forth, and is meant for demolition, cutting through walls, pipes, and nails, not for fine work.
Do I need a corded or cordless jigsaw for beginner projects?
Both work well for beginners. Corded jigsaws offer unlimited run time and consistent power, perfect for long sessions. Cordless jigsaws are more portable and convenient for small tasks. If you already own a battery system, a cordless jigsaw is a great first choice.
What speed should I use on a jigsaw?
Generally, use a lower speed for metal (1–3) and plastics to avoid melting. Use medium to high speed (4–6) for wood and plywood. Always start with the saw already moving at the desired speed before contacting the material.
How do I prevent the wood from splintering when using a jigsaw?
Use a fine‑tooth blade (18+ TPI), apply painter’s tape along the cut line, and cut with the good side of the wood facing down. You can also attach a zero‑clearance base plate (a thin piece of plywood with a slot) to the jigsaw’s shoe.
Can a jigsaw cut concrete or brick?
No, standard jigsaws cannot cut concrete or brick. You need a specialized saw like a concrete saw or angle grinder for masonry. However, a jigsaw with a carbide‑grit blade can cut ceramic tile and glass, which are hard but thin materials.
