Cordless tool lines expand in waves, and the latest announcements show how wide the category has grown: larger sanders, chainsaws, hedge trimmers, routers, cable cutters, mixers, and laser levels all running on the same batteries as drills and drivers. For contractors, each new cordless entry changes the math on which cordless power systems for construction belong in the truck. This article explains what the expansion means, how to evaluate the new tools, and where cordless still falls short of corded.
The Push to Cut the Cord, Category by Category
Cordless lines started with drills and drivers, then spread to saws, grinders, and impact wrenches. The current wave reaches further into finishing, outdoor, and specialty work, where battery power once meant giving up performance. The pattern repeats every cycle: a new category waits until batteries and motors can match the corded baseline, then the cordless version sells on convenience and setup time.
Tool Types That Recently Went Cordless
- Finish sanders: random orbit and multi-pad models, now moving to larger 150 mm (6-inch) pads for broader coverage.
- Outdoor power equipment: chainsaws and hedge trimmers sharing the same 18V packs as indoor tools.
- Routing and trimming: cordless routers for edge work, hinge mortises, and laminate trimming.
- Electrical work: cable cutters sized for electricians, following the press tools already launched for plumbers.
- Mixing: paddle mixers for thinset, mortar, and paint that used to require a corded motor.
- Layout and leveling: laser levels with swappable power modules that accept multiple battery formats.
The sequence is not random. Battery cells and motor controllers improve, and each improvement unlocks the next category: higher amp-hour packs made continuous-draw tools practical, and brushless controllers made compact bodies viable. A tool that failed as a cordless product five years ago can succeed now on the same platform, which is why release timing tells you more about technology maturity than about marketing.
Why Sizing Matters
Pad size, bar length, and cutting capacity decide whether a cordless tool genuinely replaces the corded version or only handles light duty. A 6-inch sander covers more area per pass than a 5-inch model, which matters when you flatten panels or strip finishes all day. Check published capacities against the work you actually do before assuming the cordless tool matches its corded sibling.
The same sizing logic runs through compact cordless power tools such as palm nailers, hammer drills, and multi-tools, where a smaller body trades outright power for access and endurance in tight spaces.
What a Bigger Sander Shows About Cordless Power
Sanders are a stress test for cordless platforms because they run continuously at high speed and draw steady current. Random orbit sanders went cordless early, and the arrival of a 6-inch 18V model signals that motors and packs have caught up to sustained load. The tool body stays compact next to corded equivalents, which cuts fatigue during overhead and vertical work.
Runtime and Battery Draw
A sander is not a drill: it runs for minutes at a time instead of seconds in bursts. Runtime depends on amp-hour capacity, pad size, and applied pressure, and a 6-inch pad pulls more current than a 5-inch pad at the same speed. Budget extra packs for continuous finishing work, or plan charging around lunch and coffee breaks. A simple formula helps: count the hours of continuous sanding in a typical day, divide by the runtime you expect from one pack, and buy enough batteries to cover two days without a full recharge cycle.
| Factor | 5-inch random orbit | 6-inch random orbit |
|---|---|---|
| Coverage per pass | Smaller | Larger |
| Battery draw | Moderate | Higher |
| Typical use | Spot sanding and touch-up | Flattening, stripping, panels |
| Runtime per 5.0 Ah pack | Longer | Shorter |
| Best match | Cabinet and trim work | Doors, decks, drywall prep |
Professional-grade cordless power tools in the new sizes target crews who sand, cut, and mix for hours, and independent reviews consistently test them against corded benchmarks for sustained output.
Ergonomics follow size. A sander that balances well at arm’s length reduces fatigue on overhead work, and a compact body with a top handle positions the weight over the pad instead of behind it. Vibration control matters too: sanders with better pad dampening produce cleaner finishes and less hand fatigue over a full day.
Outdoor and Specialty Tools Join the Platform
Chainsaws, hedge trimmers, cable cutters, and mixers share batteries with indoor tools, so one set of packs and chargers supports landscaping, electrical, plumbing, and general carpentry. For a contractor who crosses trades, that consolidation removes a second charging ecosystem from the van and simplifies the spare-pack budget.
Trades That Benefit Most
- Electricians: cable cutters and press tools replace manual cutters and crimpers on repetitive jobs.
- Plumbers: cordless press tools speed up copper and PEX connections in tight chases.
- Landscapers: chainsaws and hedge trimmers run on the same packs as drills and drivers.
- Finish crews: cordless routers and sanders cut setup time on ladders and scaffolding.
Battery draw varies by category, and outdoor tools are the heaviest users. Chainsaws and hedge trimmers run at high load for long stretches, so the packs that handle a day of drilling will not necessarily last a day of cutting. Check the runtime guidance for the specific category rather than assuming one battery count fits the whole kit.
Drywall and finish work shows the pattern clearly: cordless drywall cut out tools and other specialty power tools slot into professional workflows that used to require a cord, a generator, or a long extension run.
How Brushless Motors Change the Size-Power Trade-Off
Brushless motors are the reason new cordless categories exist. They deliver more torque per amp, run cooler under sustained load, and last longer than brushed motors, which lets manufacturers shrink the tool body without shrinking output. The compact envelope matters for sanders held at odd angles, routers worked overhead, and mixers carried between buckets.
Motor Tech and Runtime
Brushless designs also extend runtime because they waste less energy as heat. Brushless motors change the size-versus-power math enough that a compact 18V tool can outwork an older corded tool of similar size, which makes comparison tests worth studying before you buy.
Compact lines matter for a different reason: they pull new users into a platform at a lower price point. A contractor who starts with a compact drill and driver set builds battery inventory gradually, then adds the larger tools when the workload justifies them. That entry path is why manufacturers keep the small tools current instead of letting them age out.
Evaluating Performance
Look past the motor label and check the numbers that matter: no-load speed, torque rating, pad orbit, and published capacities. Test the tool under load when you can, because a motor that sounds strong in the store can bog down in real material. Runtime claims deserve the same scrutiny: a rating measured on a light-duty cycle will not predict performance on a full day of continuous sanding or mixing, so weight the spec sheet against the workload you actually run.
Plan Upgrades Around Platform Compatibility
Before adding a new cordless category to your kit, confirm it runs on the batteries you already own. Some tools accept multiple pack voltages or swappable power modules, but compatibility varies by region and generation. A new tool that needs a new battery platform doubles your charger count and your spare-pack budget.
Questions to Ask Before Buying
- Does the tool use the same batteries and charger as my current kit?
- What is the rated runtime under continuous load, and how many packs do I need for a full day?
- Does the cordless version match the capacity of the corded tool it replaces?
- Are pads, accessories, and replacement parts available locally?
- What do working pros report about sustained performance after months of use, not just first impressions?
Region matters for availability. Announcements often land in one market before another, and a tool that launches in Europe can take months to reach US shelves. If you plan around a specific new model, confirm local availability and release timing before you reorganize your kit around it.
The runtime gains in the new generation of jobsite tools come from pairing brushless motors with high-capacity packs, so budget for both when you plan the upgrade.
Cordless expansion does not erase the corded toolbox; it repositions it. Heavy, continuous, and stationary work still favors corded power, while the new categories shine where access, setup time, and mobility matter most.
Weighing corded versus cordless power tools on a job-by-job basis keeps your kit honest: buy the cordless version where it genuinely replaces the cord, and keep the corded tool where the cordless one still compromises.