The Makita GSH06Z 40V max XGT Brushless Cordless 16-5/16" Circular Saw, AWS Capable, Tool Only is a large-format cordless circular saw built for heavy timber cutting, beam cutting, pressure treated lumber, and wood logs. This is a circular saw designed for high-capacity framing and timber applications. Model Number: GSH06Z. If you need to cut oversized wood stock in a single pass without relying on a corded setup, this is the kind of saw that actually moves the needle.

The big story here is cutting capacity. Makita built this saw around a 16-5/16 inch blade with a 1 inch arbor, giving it the ability to cut 6x material at 90 degrees and 4x material at 45 degrees in one pass. That matters when you are working with large beams, posts, headers, landscape timbers, or thick pressure treated stock. Instead of rotating the material or making multiple passes, you get through it cleanly in one shot, which saves time and keeps your layout more accurate.

Makita also claims up to 30% faster cutting speed than its corded 5402NA, which is not a small claim considering the size class of this saw. The 2,100 RPM no-load speed, brushless motor platform, and blade stabilizer are all aimed at keeping the cut moving steadily through dense material. In plain terms, it is meant to stay composed under load, not just spin a big blade on paper.

For a saw in this category, weight and handling matter a lot. The die-cast aluminum build keeps the net tool weight to 24.3 pounds, and Makita notes that it is 4.1 pounds lighter than the comparable corded model. That does not make it a light saw, but it does make it more manageable when you are carrying it across a site, setting up repeated beam cuts, or working where power access is a hassle. The ergonomic layout, bevel lock, and positive bevel stops at 15, 30, and 45 degrees all point to a tool designed for real production use instead of occasional specialty cuts.

Makita added the features you want on a saw this size: an electric brake for quicker blade stop, soft start to reduce start-up reaction, and Extreme Protection Technology for better durability in harsh conditions by moving water and dust away from critical internal components. Those are practical jobsite details. On a high-torque saw with a large blade, soft start helps the saw come up to speed in a more controlled way, and the brake helps when you are making repeated cuts and moving between positions.

The AWS side of this saw is worth calling out because it is not just a badge feature. The GSH06Z is AWS capable, meaning it can pair with a compatible dust extractor for automatic on and off operation when used with the optional Auto-start Wireless Transmitter, part number 198901-5. If you are cutting indoors, in a shop, or anywhere dust control matters, that system can streamline cleanup and reduce the noise of a vacuum running constantly in the background.

Battery platform matters too. This saw runs on the Makita 40V max XGT system, which is Makita's high-demand cordless platform for tools that need serious output. That makes the GSH06Z a strong fit for crews already invested in XGT batteries and chargers. Makita states up to 75 cuts per charge in 6x12 lumber with a 5.0Ah battery, which gives you a useful benchmark for runtime in heavy cutting, though the battery and charger are sold separately with this tool-only version.

Who should buy it? This is for framers, timber crews, general contractors, and serious builders who routinely cut large wood stock and want cordless freedom without giving up capacity. It is also a smart fit for users who already own Makita XGT batteries and need a production-ready beam saw. If your work rarely gets beyond standard framing lumber, this is more saw than you need. If you regularly cut big timber and want to stop wrestling with cords, this is exactly the point of the tool.

Big cordless saw for serious wood cutting

The Makita GSH06Z 40V max XGT Brushless Cordless 16-5/16" Circular Saw is a purpose-built tool for crews that cut large lumber all day and want that capacity without dragging around a cord.

• Who it's for: Framers, timber crews, builders, and contractors cutting beams, posts, large pressure treated stock, and heavy wood material.
• Why it stands out: Real single-pass 6x cutting at 90 degrees, 4x cutting at 45 degrees, AWS capability, and cordless XGT power in a package that is lighter than Makita's comparable corded saw.
• Worth knowing: This is the tool-only version, so plan on adding an XGT battery and charger if you are not already on the platform. It is also a specialized saw, not the one you grab for everyday sheet goods or small trim work.

• What battery platform does this saw use? It is compatible with Makita 40V max XGT Lithium-Ion batteries.
• Can it cut 6x material in one pass? Yes. Makita states it cuts 6x material at 90 degrees and 4x material at 45 degrees in a single pass.
• Is this saw AWS ready? Yes. It is AWS capable, but the Auto-start Wireless Transmitter is sold separately.
• Does this tool-only version include a battery or charger? No. Battery and charger are not included.