Walk into any hardware store — or browse one online — and the sheer number of power tools on offer can feel overwhelming. Cordless or corded? Brushless or brushed? 18V or 20V? And that's before you've even decided what you actually need to buy.
This guide cuts through the noise. Whether you're setting up your first workshop, tackling a home renovation, or looking to upgrade tools you've been using for years, here's what actually matters when choosing power tools — and what most buyers get wrong.
What Counts as a Power Tool?
Power tools are any tools driven by an external power source — electricity (corded or battery), compressed air, or combustion. For most home and trade use, that means electric tools: drills, circular saws, jigsaws, angle grinders, sanders, and so on.
They're distinct from hand tools not just in how they're powered, but in what they make possible. A hand saw can cut a board; a circular saw can cut fifty boards in the same time. That speed and consistency is the whole point.
Corded vs. Cordless: The Real Trade-Off
This is the first question most buyers face, and the answer isn't as simple as "cordless is better." Both have a place depending on how and where you work.
Corded tools
Corded tools deliver consistent power without worrying about battery life. If you're doing sustained, heavy-duty work — running an angle grinder for an hour, cutting through thick hardwood, or using a belt sander on a large surface — corded tools won't let you down mid-job. They're also generally cheaper for the same power output.
The obvious downside is the cable. Working outdoors, on a roof, or anywhere far from a socket means extension leads, which add their own complications (and safety considerations).
Cordless tools
Cordless tools have improved dramatically over the past decade. Modern 18V and 20V lithium-ion platforms deliver enough power for most tasks a DIYer or tradesperson encounters. The freedom of movement is genuinely useful — no cable to trip over, no extension lead to manage, and you can work anywhere.
The catch is battery management. A good battery and charger setup costs money, and if you're on a long job and your battery dies, you're waiting. Buying into a single brand's battery platform (Bosch, Makita, DeWalt, Milwaukee, etc.) makes sense long-term because batteries are interchangeable across that brand's tools.
Practical rule of thumb: If you work in a fixed location (a workshop, a garage), corded tools are often the better value. If you move around — between rooms, between sites, outdoors — cordless wins on convenience.
The Core Power Tools Worth Owning
You don't need every tool in the catalogue. Most projects, from flat-pack assembly to full room renovations, can be handled with a focused set of well-chosen tools.
Drill / Driver
The single most useful power tool for most people. A good cordless drill/driver handles screws, bolts, and drilling holes in wood, metal, and plastic. Look for variable speed, a clutch with multiple torque settings, and a keyless chuck. If you're drilling into masonry regularly, consider a combi drill (also called a hammer drill) — it adds a hammering action that makes concrete and brick far less frustrating.
Angle Grinder
Versatile and powerful, angle grinders cut, grind, and polish metal, tile, and stone. They're indispensable for metalwork and renovation jobs. The disc you fit determines what it does — cutting discs, grinding discs, flap discs, and wire wheels all serve different purposes. A 115mm or 125mm grinder covers most tasks; 230mm models are for heavier cutting work. Always use the right abrasive wheel or disc for the material you're working with.
Jigsaw
For curved cuts, internal cuts, and cutting sheet materials, a jigsaw is the go-to. It's more controllable than a circular saw for intricate work and handles wood, metal, and plastic depending on the blade fitted. Orbital action settings let you cut faster through wood; turn it off for cleaner cuts in metal or laminate. Choosing the right jigsaw blade for the material makes a bigger difference than most people expect.
Circular Saw
When you need to make long, straight cuts in timber or sheet material quickly, a circular saw is the right tool. It's faster and more accurate than a jigsaw for straight lines. A good guide rail or fence makes a significant difference in cut quality. Not essential for everyone, but if you're doing any serious woodworking or construction work, it earns its place.
Random Orbital Sander
Sanding by hand is slow and tiring. A random orbital sander does the job in a fraction of the time and leaves a better finish because the random motion avoids the circular scratches you get from disc sanders. Essential for furniture, floors, and any finishing work before painting or varnishing.
Reciprocating Saw
Sometimes called a sabre saw, this is the demolition specialist. It cuts through wood, metal, pipes, and nails — useful when you're taking something apart rather than building it. Less precise than a jigsaw, but that's not the point.
Understanding Power Tool Specs
Specs on the box can be misleading if you don't know what to look for.
Voltage (for cordless tools)
Higher voltage generally means more torque and power. 12V tools are compact and light — good for light-duty work and tight spaces. 18V (or 20V max, which is the same thing marketed differently) is the sweet spot for most users. 36V and 54V tools exist for heavy-duty professional use.
Brushless vs. Brushed Motors
Brushless motors are more efficient, run cooler, last longer, and deliver more power from the same battery. They cost more upfront but are worth it if you use the tool regularly. Brushed motors are fine for occasional use and are cheaper to buy and repair.
Wattage (for corded tools)
Higher wattage means more power, but it's not the only factor. A well-designed 700W grinder can outperform a poorly designed 900W one. Look at reviews and real-world performance rather than just the wattage figure.
RPM and Torque
RPM (revolutions per minute) tells you how fast the tool spins. High RPM is good for cutting and grinding; lower RPM with high torque is better for driving screws and drilling. Variable speed tools give you control over both.
Common Mistakes When Buying Power Tools
These come up repeatedly, and they're all avoidable.
Buying the cheapest option available. Budget tools from unknown brands often have poor build quality, inaccurate components, and short lifespans. They can also be less safe. Spending a bit more on a reputable brand pays off over time — especially for tools you'll use often.
Ignoring the battery ecosystem. If you're going cordless, think ahead. Buying tools from different brands means buying different batteries and chargers. Committing to one platform (even if it costs slightly more initially) saves money and hassle in the long run.
Buying more tool than you need. A 2,000W angle grinder for occasional DIY is overkill and harder to control safely. Match the tool to the actual work you're doing.
Skipping safety equipment. Power tools move fast and cut hard. Eye protection, hearing protection, and appropriate gloves aren't optional — they're part of using the tool correctly. If you're working with cutting or grinding tools, proper personal protective equipment should be part of every job.
Not reading the manual. This sounds obvious, but most people don't. Torque settings, blade installation, guard adjustment — these details matter for both performance and safety.
Maintaining Your Power Tools
Power tools don't need much maintenance, but a little goes a long way.
Keep them clean — dust and debris build up in vents and can cause motors to overheat. A soft brush or compressed air works well. Store cordless batteries at partial charge (around 40–60%) if you're not using them for a while; storing them fully charged or fully flat shortens their lifespan. Check cables on corded tools regularly for damage — a frayed cable is a safety hazard. Replace worn blades and discs promptly; a dull blade makes the tool work harder and produces worse results.
Power Tools and Construction Projects
If you're using power tools as part of a larger build or renovation, the choice of tools connects directly to the type of work. Our guide on choosing the right construction tools for your project covers how to think about tool selection across different phases of a build — from groundwork to finishing.
For outdoor projects, power tools often work alongside garden equipment. A chainsaw, hedge trimmer, or electric cultivator all fall under the broader power tools category, and many of the same buying principles apply.
Frequently Asked Questions
What power tools should a beginner buy first?
Start with a cordless drill/driver — it's the most versatile tool you can own and handles the majority of everyday tasks. Add a jigsaw if you're doing any cutting work, and a random orbital sander if you're finishing surfaces. Those three cover a huge range of projects.
Is it worth buying a full tool kit or individual tools?
Kits can offer good value if you need most of what's included. But buying tools individually means you choose exactly what you need and can invest more in quality where it matters. If you're starting from scratch and want to build a cordless collection, a starter kit with two batteries and a charger is often the most cost-effective entry point.
How do I know if a power tool is safe to use?
Look for CE marking (required in the EU/Bulgaria) and buy from reputable brands or retailers. Check that guards are in place and functioning before use, always use the correct accessories for the tool, and wear appropriate PPE. If a tool feels wrong — unusual vibration, smell, or noise — stop using it and have it checked.
Corded or cordless for a home workshop?
For a fixed workshop with power sockets nearby, corded tools often make more sense for sustained use. A corded drill press, bench grinder, or table saw will outperform cordless equivalents at the same price point. For tools you move around — a drill, jigsaw, or sander — cordless is more convenient.
Choosing Well Matters More Than Buying More
The best power tool setup isn't the biggest or most expensive — it's the one that matches how you actually work. A well-chosen drill, a quality grinder, and the right blades and bits will take you further than a garage full of tools you rarely reach for. Buy for the work you do most, invest in quality where it counts, and build from there.