DeWalt 20V MAX cordless tire inflator
Runs on the same 20V MAX batteries as DeWalt drills — handy if you already own the platform.
Garage & roadside
Cordless car tools: air up, jump, swap.
The same batteries that run your drill can top up tires, and a pocket-size jump pack beats waiting for a stranger with cables. Here's what to keep in the car, what to keep in the garage, and how to swap a wheel the right way. You've got this.
Keep in the carTire inflator + jump starter
Keep in the garageImpact wrench, torque wrench, jack stands
Golden ruleTorque lug nuts to spec with a torque wrench
Read firstYour owner's manual
1 · Cordless tire inflators
A cordless inflator lets you set a target pressure, hit start, and walk away — most switch off automatically when they reach it. Use the pressure on the tire placard on the driver's door jamb (or your owner's manual), not the maximum printed on the tire's sidewall, and check tires cold, before driving.
- Already own a tool brand? Buy the inflator on the same battery platform — it's usually sold tool-only.
- Check the gauge against a good pencil or digital gauge once; built-in gauges vary.
- Small accessories matter: inflators usually come with ball and presta adapters for bikes and sports gear, too.
Milwaukee M12 compact inflator
A small 12V option that lives in a trunk organizer and shares batteries with M12 drills.
Ryobi 18V ONE+ cordless inflator
The budget-friendly way in if you're already on Ryobi's ONE+ batteries.
Rechargeable portable tire inflator
Not on a tool platform? Self-contained rechargeable inflators charge over USB — check the listing for the charging type.
2 · Portable jump starters
A lithium jump starter is a battery pack with clamps. No second car needed. The basic routine for most packs (always follow your pack's manual):
- Everything off in the car — lights, heater, radio. Pack off.
- Red clamp to the positive (+) terminal, black clamp to the negative (–) terminal or a bare-metal ground point your owner's manual names.
- Turn the pack on, wait for its ready light, and start the car.
- Once it's running, pack off, then remove black first, then red.
Don't jump a battery that is cracked, leaking, swollen or frozen. Keep the clamps from touching each other. Recharge the pack every few months — a flat jump pack is just a paperweight.
NOCO Boost lithium jump starter
A well-known name in compact lithium jump packs. Match the pack to your engine size — the listing shows which engines each size is rated for.
Portable lithium jump starter
Compare peak amps against your engine (bigger V8s and diesels need more), and look for reverse-polarity protection.
Jump starter with built-in air compressor
One box for the two most common roadside problems. Bigger and heavier than a pure jump pack.
3 · A cordless impact wrench for tire swaps
Seasonal tire swaps, rotations, a flat in the driveway — an impact wrench turns twenty minutes of wrestling a lug wrench into a couple of minutes per wheel. It's brilliant for getting lug nuts off and running them on. It is not the tool for final tightening.
🔧 Always torque lug nuts to spec with a torque wrench. Your owner's manual lists the lug-nut torque for your vehicle. An impact wrench can easily over-tighten, which can stretch wheel studs and stress brake parts; under-tightened nuts can work loose. Snug them with the impact on its lowest setting, lower the car, then finish every nut with a torque wrench in a star pattern. And never put any part of your body under a car supported only by a jack — use jack stands on solid ground.
Swap a wheel, step by step
Park, chock, brake
Flat, solid ground. Parking brake on, in Park (or in gear for a manual), and wheel chocks against the tire diagonally opposite the one you're changing. Hazard lights on at the roadside.
Break the lugs loose on the ground
Before lifting, loosen each lug nut about a half turn — with the wheel on the ground it can't spin. Reverse on the impact wrench (or a breaker bar).
Lift at the right point, then support
Jack only at the lift points in your owner's manual. Lift until the tire clears the ground, then set a jack stand under a manufacturer-approved support point. Stands hold; jacks lift.
Off with the old wheel
Spin the lugs off (the impact wrench makes this seconds), keep them in a cup, and pull the wheel straight off.
Thread the new lugs by hand
Line up the wheel, then start every lug nut by hand for a few turns so nothing cross-threads. Don't start them with the impact.
Snug in a star pattern — gently
Run the nuts down until just snug, working in a star (criss-cross) pattern so the wheel seats evenly. Use the impact's lowest setting or a hand ratchet. Don't hammer them tight.
Lower and torque to spec
Lower the car so the tire carries weight, then set your torque wrench to the value in your owner's manual and tighten each nut in the star pattern until it clicks. Then go around once more.
Re-check after a short drive
Many tire shops recommend re-checking lug torque after the first drive on newly mounted wheels — follow your manual or installer.
Mid-torque 1/2" cordless impact wrench
Mid-torque models are a popular choice for car lug nuts — smaller and lighter than high-torque wrenches. Pick one on your battery platform and check its rated torque in the listing.
DeWalt 20V MAX 1/2" impact wrench
Shares batteries with DeWalt drills and drivers.
Milwaukee M18 FUEL 1/2" mid-torque impact wrench
Shares batteries with Milwaukee M18 tools.
1/2" drive click torque wrench
The tool that actually sets your lug nuts to spec. Choose one whose range covers your vehicle's lug-nut torque.
Impact-rated lug nut sockets
Use impact-rated (black, CrMo) sockets with an impact wrench — regular chrome sockets aren't made for it. Thin-wall versions protect alloy wheels.
Jack stands & wheel chocks
A jack lifts; stands hold. Never get any part of your body under a car held up only by a jack.
Tagged Amazon searches. We don't print prices, torque ratings or specs we haven't verified — compare the listings for your platform. New to impact tools? Our impact driver comparison explains how impacts work (an impact wrench is the bigger, square-drive sibling).
Want to understand your car better? Dare to Repair Your Car is on our reading list.
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