Power Tool Sale Checklist: What a Quality Inspector Checks Before You Buy (EGO, Chainsaw Cases & More)

I review tools for a living. Not in a lab—at a distributor that sells and services them. I’ve probably rejected more “deals” than you’ve ever pulled the trigger on. So when I see a big EGO tools sale ad or a shelf of “universal” accessories, I know exactly what to look for before the payment goes through.

This checklist works for anyone shopping for outdoor power tools, replacement parts, or a cheap add-on that seems too good to leave behind. Use it if you’re eyeing an EGO chainsaw case, wondering whether angle grinder blades are really interchangeable, or trying to decide if your old electric lawn mower is worth repairing. There are six checks total. You don’t have to do them all in order, but you should do them all before you buy.

1. Check the battery platform before you fall for the “deal”

If the deal is on EGO tools, the first thing to check is whether you’re buying a bare tool or a kit. A bare tool doesn’t come with a battery or charger. That might be fine if you already own a 56V battery. But if you’re starting from zero, add the cost of a battery and charger to the “sale” price. People have bought a discounted bare blower, then spent more on a battery than the tool itself.

Also check the battery date code. Batteries lose capacity with age even when they sit on a shelf. A “new old stock” battery from three years ago is not the same as a fresh one. In our 2024 warranty data, date codes explained about a third of battery failures, not hours of use. So if you can, ask the seller for the manufacture date. If they can’t tell you, negotiate or buy from someone who can.

2. Inspect the chainsaw case like your tool depends on it

A chainsaw case might look like a storage afterthought. It isn’t. A good one holds the saw with the bar supported, keeps the chain oil from leaking all over your truck bed, and stays latched when you lift it by the top handle. That sounds obvious, but I’ve checked hundreds of cases over the years. The surprise wasn’t the price gap between an OEM case and a third-party one—it was how many cheap cases let oil soak into the foam after a few weeks. Once foam is saturated, the case becomes a sponge that holds moisture next to the bar. That’s how you get rust, and rust on a chain is a durability problem, not just a cosmetic one.

Before you buy an EGO chainsaw case, verify it fits the bar length of your saw. A 16-inch case won’t necessarily hold an 18-inch bar. Check the latch closing force, the strap attachment points, and whether the interior has cutouts for the bar tip. If a case is “universal,” it’s probably designed for the smallest and largest in a range—it may not support the saw’s weight properly in between.

3. Don’t assume angle grinder blades are universal

This is the question I get most often: “Are angle grinder blades universal?” Short answer: no. They are not all interchangeable, and getting it wrong isn’t a matter of a wobbly cut—it’s a safety issue.

Check three numbers before you pick a blade:

• Disc diameter: a 4.5" grinder won’t safely spin a 5" blade. The guard won’t cover it.
• Arbor hole: most small angle grinders use 7/8" or 22.23 mm, but not all. Some blades for “cut-off” applications use 5/8".
• RPM rating: the blade’s maximum RPM must be greater than the grinder’s no-load speed. Underrated blades can shatter.

According to ANSI B7.1, abrasive wheels should not be operated above their rated speed. It’s not a suggestion. A blade that flakes off at 10,000 rpm is a projectile.

Looking back, I should have checked the arbor size on the first grinder I bought. At the time, “universal” sounded like a feature. It wasn’t. The package said “fits all angle grinders,” but the blade didn’t fit any grinder in our shop without a spacer. So trust me on this one: read the fine print, measure the arbor, and buy from a supplier that lists the spec clearly.

4. For add-ons like an overdrive socket set, quality matters more than the count

Sales season also brings checkout-line add-ons: a 200-piece socket set, a wrench set, or a “free” overdrive socket set when you buy a tool. The discount might be real, but the quality often isn’t.

When I evaluate sockets, I look for:

• Clear marking of size and drive. If the sizes are only embossed shallowly, they’ll wear off.
• No slop between socket and fastener. A socket that’s even 0.2 mm oversize can round off a bolt head. We rejected a batch of 50 sets once where every 10 mm socket was oversized by that amount.
• Impact-rated if you plan to use them with an impact wrench. Chrome sockets can shatter under impact.
• A warranty that doesn’t require shipping the whole set back and waiting four weeks.

I went back and forth between a cheap overdrive socket set and a known-brand set for about two days. The cheap set had more pieces. The known set had better steel and a local warranty. I eventually went with the known set because, on the job, one rounded lug nut costs more than the price difference. If you’re a homeowner changing a tire twice a year, that tradeoff might be different. That’s fine. Just make the decision with your eyes open.

5. Old electric lawn mower? Use this repair-or-replace checklist

If you’ve got an old electric lawn mower in the garage, don’t dump it without a quick diagnosis. And if you’re shopping for a new one, here’s what the old mower taught me to check.

1. Spin the blade by hand (with the mower unplugged or battery removed). If it turns freely and the blade is sharp or cheap to replace, you might have a working mower.
2. Look at the switch and wiring. If the cord or insulation is cracked, stop. That’s a hazard issue, not a DIY repair for most people.
3. Sniff the motor. A persistent burning smell is usually worn brushes or an overheating motor. Brushes may be replaceable, but if the commutator is scored, it’s not worth it.
4. Inspect the deck for cracks. Hairline cracks can turn into full splits after a season of vibration.

An old electric mower with a 12-inch deck and a cord may still cut a small lawn. But if you’re already considering a replacement, this is where the industry evolution matters: brushless motors and 56V batteries have made cordless mowers genuinely practical. The fundamentals haven’t changed—a mower still needs a strong deck, sharp blade, and reliable power—but the execution has transformed. A good 21" brushless model can deliver torque that older corded mowers couldn’t sustain.

If a used mower is priced at 70% of a new one and needs a battery, skip it. I’m not 100% sure of your local market, but in our shop, the total cost of a “cheap” old mower plus a fresh battery usually lands close to the price of a new kit with warranty.

6. Check the warranty and support network before you spend

This is where EGO tools sale deals get interesting. A good price means nothing if the warranty process is painful. EGO’s website generally shows a 5-year warranty on Power+ tools and 3 years on batteries (verify current terms with the retailer before you buy). But warranty terms are only half the story.

Ask yourself:

• Do you need to mail the whole tool back, or can you drop it at an authorized service center?
• Will the warranty cover shipping both ways?
• Do you have a copy of the receipt? Register the serial number after purchase.

Take it from someone who processes warranty claims: a $40 discount on a $400 mower disappears if the battery dies at 13 months and the seller’s “warranty” doesn’t include the battery. Check the fine print.

Common mistakes I see on sale items

• Assuming “universal” means everything. It never does. Check the spec sheet.
• Buying a bare tool without comparing total cost. Add battery, charger, and case.
• Ignoring date codes. Old batteries are not a deal.
• Storing accessories carelessly. A chainsaw case without proper drainage turns into a moisture trap.
• Skipping safety speed ratings. For abrasive blades, RPM rating is not a suggestion.

One more thing: don’t let the sale sign replace your own inspection. I’ve rejected expensive items with damage out of the box and cheap items that were just cheap. The difference is knowing what you’re looking at. That’s the checklist.