Makita 415mm XGT Cordless Circular Saw Review: A 16-5/16" Beast on One Battery

Introduction

Makita has topped its own record. When the 270mm XGT circular saw launched, it was the biggest cordless circular saw available. The 415mm (16-5/16”) XGT circular saw makes that one look small, and it does it while running on just one battery.

This is not a saw for everyday framing. It is a specialized beast aimed at timber that other circular saws simply cannot reach through in one pass, and it comes with real trade-offs in weight, size, and price.

Who This Product Is For

If you regularly need to cut timber thicker than about 150mm, rip wide boards, or square off oversized slabs that would normally demand a chainsaw or reciprocating saw, this saw makes sense. Cutting up pallets, thick posts, and large hardwood sections in a single pass is exactly where it earns its keep.

If your work is mostly 4x2s and sheet goods, you will be crazy to pull this out. A 125mm or 165mm saw will do the job faster and far more comfortably.

Main Strengths

Depth of cut. Makita claims 158mm at 90 degrees, and in testing it actually managed around 161mm, which fits the pattern of Makita slightly under-quoting. At 45 degrees, the claimed 106mm turned out to be closer to 110mm in practice, meaning you can bevel right through a 100x100 post without flipping it.

One-battery design. It is genuinely impressive that a saw this large runs on a single battery. The 2100 RPM blade speed sounds low next to smaller saws running far faster, but a big blade does not need high speed to cut well.

Tough construction. The base is pressed steel rather than aluminum or magnesium, a deliberate choice given the base is roughly two feet long and would crack quickly if made from softer metal. Nearly all the plastic is polycarbonate, TPE overmolding is limited to the grip areas instead of being plastered everywhere, and the tool is assembled with nuts and bolts going right through rather than screws into a plastic clamshell.

Blade stabilizer. A movable stabilizer sits close to the blade on one side, with a fixed one on the other. It is designed to stop the thin 2.3mm kerf blade from wandering or wobbling, and it can stay engaged all the time, only opening when you change blades.

Practical extras. The front of the guard can be removed to get right up close to work, there is a groove in the base for running on track like a plunge saw, a dust extraction port is built in, and there is onboard tool storage plus AWS compatibility. The motor housing is also about 65mm narrower than the AC version, making it surprisingly compact side to side for its size.

Things to Consider Before Buying

Weight is the headline issue. At around 10kg without a battery, and close to 12kg with an 8Ah pack fitted, this is a two-handed tool through and through. The supplied side handle is not optional here, and the workpiece needs to be heavy enough not to move or well clamped down, because there is a lot of friction on that long base.

It also demands patience. Slow and steady wins the race: let the tool do the work rather than pushing it, and it will cut fine. Being cordless, it stalls rather than kicking back, which adds a built-in safety margin, but pinched blades in twisting timber are still a risk when cutting multiple boards at once.

Blade changes follow the usual Makita pattern with an Allen key and trigger lock, and the guard retracts with real force against a large rubber bumper, so expect some whack when you let go. The bevel scale can overshoot slightly past 45 degrees, so check it with a square until you learn where the mark really sits.

Availability is worth checking too. This saw arrived in some regions before others, and early stock has been limited in some markets. Also confirm what blade is included where you live, because the supplied blade differs by region and some markets may not include one at all.

Buying Advice

Runtime has held up well in testing. A 4Ah tabless battery powered an entire session of deep crosscuts, pallet demolition, and full-length rips before dropping below half capacity. Makita quotes around 75 cuts through 100mm wide by 150mm macrocarpa on a 5Ah battery. If you are buying batteries for the XGT platform anyway, the tabless options strike a good balance.

Be prepared to spend serious money. This is a big, expensive, specialized tool that most buyers will not need, but if you genuinely need to cut huge timber in one pass, it is worth it. Consider whether renting or borrowing covers your occasional needs before committing, because for many people that is the honest answer.

Conclusion

The Makita 415mm XGT circular saw is an engineering feat: over 160mm of cut depth from a single battery, built tough enough to survive job site abuse, and capable of work no other cordless circular saw can match. It is heavy, cumbersome, and expensive, and it will sit idle most days if your work does not demand it. But when the timber is too thick for anything else, nothing else will do.