1. Milwaukee M18 BLCS66 — the one to buy if you’ll use it hard
The Milwaukee is the most saw here, and the best built. Its 190mm blade cuts 66mm deep on a square cut — the deepest of the three, clean through 45mm framing pine with room over, and enough for stacked sheet stock. The brushless motor holds its revs in hardwood where a cheaper motor sags, and at 3.3kg it’s lighter than it looks for the blade it swings.
The details are what you’re paying for: magnesium guards that take knocks, an electric brake that stops the blade the moment you let go, and a rafter hook to hang it between cuts. It rides on Milwaukee’s M18 system, one of the biggest cordless ranges going, so a battery you buy for the saw feeds a lot of other tools. The catch is the cost — it’s the dearest skin here, and it’s a bare tool, so a battery and charger ride on top if you’re not already on M18. For a DIYer who’ll frame, deck and rip sheet stock for years and would rather buy once, that outlay is the right call. (Matt: this is the one I’d buy, and I don’t say that lightly about a saw this dear.)
2. DeWalt DCS570N — the deep cut for less
The DeWalt gets you almost all of the Milwaukee’s depth for less money. Its 184mm blade reaches 65mm on a square cut — a hair under the Milwaukee, still clean through 45mm pine in one pass — on a brushless motor that doesn’t fade when the timber gets hard. On its own review it rates 8.4, and it carries our best-saw-for-framing-and-decking badge for good reason: if depth of cut is the thing you’re buying for, this does the job for less than the Milwaukee.
What you give up is the Milwaukee’s finish — there’s no electric brake, and the guards are less rugged — and it’s the heaviest of the three, the toll for a real blade. It’s a bare skin on DeWalt’s XR range, pro-grade and well supported here, but a new platform to start from if you’re not already on it. For someone decking or framing who wants the depth without the Milwaukee’s premium, it’s the value path to a big-blade saw. (Joel: I’d point a deck-builder on a budget straight at this one.)
3. Bosch Home & Garden 160mm — the saw for weekend jobs
Not everyone needs a 190mm framing saw, and the Bosch green is the honest pick for a lighter job list. It’s the cheapest here by a wide margin, yet it still cuts 53mm deep — enough for decking boards, sheet ply and the odd length of pine, which is most of what a home reno throws at a saw. Bosch’s CutControl window keeps the blade on your pencil line, and it takes the Home & Garden guide rail if you want dead-straight long cuts.
It runs on Bosch’s Power for All 18V system, shared across their green garden and DIY range, so one battery family covers the mower and the drill too. The trade is that this is a DIY-grade tool, not a jobsite one: it’s lighter-duty than the other two, the 53mm cut runs short of thick bevels, and it’s a bare tool, so budget for a battery if you’re starting fresh. For weekend cuts in a shed that never sees hardwood framing, it’s plenty of saw for the least money. (Matt: for a lot of people, this is all the saw they’ll ever need.)
Blades, batteries and the warranty fine print
Every one of these is sold as a bare tool, so the number on the box isn’t what gets you cutting — a battery and charger ride on top, and on a platform you don’t already own that hidden half can outweigh a cheaper-looking saw. Add it up on the battery family you plan to stay with, because that running cost is what decides the real order for most people. If the whole category is new to you, how to choose a circular saw covers the basics first, and the platform comparison is the place to start if you haven’t settled on a battery system yet.
Warranty is worth a read before you buy, because each one rewards registering and buying from an authorised seller. Milwaukee’s Australian cover extends with online registration — check the current term when you buy. DeWalt runs a three-year limited warranty through an authorised reseller. Bosch stretches its Home & Garden cover when you register the tool. A plain-packaged grey import can turn up with shorter cover or none at all, so weigh the seller before the warranty sways you. Whichever you land on, Australian Consumer Law may still entitle you to a repair, replacement or refund no matter who sold it — reason enough to file the receipt.
The verdict
You’ll use it hard and would rather buy once: the Milwaukee M18 BLCS66. The deepest cut here, the best build, an electric brake and a huge battery range behind it. It’s the dearest, and worth it if the saw has years of framing, decking and sheet work ahead.
You want that depth for less: the DeWalt DCS570N. A brushless 184mm blade with 65mm of cut, a hair under the Milwaukee for real money less. If depth is what you’re buying and the finer details aren’t, it’s the value path to a big-blade saw.
You’re cutting on weekends and watching the spend: the Bosch green 160mm. The cheapest by a wide margin, still 53mm of cut, with a guide window that keeps it straight. For a lighter job list it’s all the saw you need.
Three saws that’ll all cut a straight line. Settle on the platform you’re happy to keep feeding first, then buy the depth of cut the job needs — and for a lot of sheds, the Bosch green is more than enough.
