Choose the battery platform before the tool
The most expensive part of a cordless tool is usually not the tool. It is the battery system it commits you to. Before you compare two impact wrenches on torque or weight, decide which battery platform you are buying into — because that decision outlives any single tool.
Why the platform is the real purchase
Every major maker sells one family of batteries that fits dozens of tools. A drill, a wrench, a light and a vacuum on the same platform share the same packs and the same chargers. Buy a tool from a second platform and you start a second collection of packs, a second charger on the bench, and a second thing to keep charged.
That is why a listing line like “fits all M18 batteries” carries more weight than it looks. It is not a feature of the tool; it is a statement about what you already own — or are about to.
“Tool only” is not a bargain by itself
A bare tool is cheaper than a kit for the obvious reason: no battery, no charger. That is the right buy if you already own the platform. It is the wrong buy if you do not, and it is the most common way to end up with a tool you cannot switch on the day it arrives. Check the listing for “tool only” or “bare tool” before anything else.
Voltage classes are not interchangeable
A maker’s compact line and its full-size line usually run on different packs, even though the names sit side by side. A 12-volt-class pack does not fit an 18-volt-class tool from the same brand. When a seller writes the platform name in the title, read it as a compatibility claim and check it against the packs you hold, not against the brand alone.
Read what the maker states, not what you infer
The makers publish which packs fit which tools. A listing that names the platform explicitly is telling you something checkable; a listing that only names the brand is not. We treat the first as a stated specification and the second as silence — and silence never becomes a yes.
The order to decide in
- Which platform do you already own packs for? If none, which one will you commit to?
- Within that platform, which voltage class does the job need?
- Only then: which tool, and kit or bare?
Some links on ShopCursor are affiliate links. See the affiliate disclosure. Commission never changes which products we pick or the order they appear in.