The Makita GAG11Z 40V max XGT Brushless Cordless 4-1/2" / 5" X-LOCK Angle Grinder is a cordless angle grinder built for grinding and cutting with faster accessory changes and better jobsite control. This is a cordless angle grinder designed for grinding, cut-off work, and material prep across metal, tile, concrete, pipe, and conduit. Model Number: GAG11Z. If you already run Makita XGT, this bare tool gives you a high-output grinder with a brushless motor, variable speed, electric brake, and AWS capability in one platform-ready package.

What matters most here is how the features work together on the job. The Makita-built brushless motor and 40V max XGT platform are designed to deliver strong grinding performance and up to 60% faster cutting speed than predecessor models. The variable speed dial gives you a usable 3,000 to 8,500 RPM range, which is a big deal if you do more than one kind of work. You can slow it down for better control on applications that need finesse, then turn it up when you need faster stock removal or cut-off performance.

The X-LOCK system is one of the main reasons to buy this grinder over a standard spindle-and-flange setup. Instead of hunting for a wrench and fighting with a stuck nut, you get tool-free wheel changes with simple snap-on mounting and a pull release lever. If you bounce between grinding wheels and cut-off wheels during a day of fabrication, remodeling, or service work, that time savings adds up fast. Quick guard rotation adds to that by letting you reposition the guard without tools, so the grinder adapts faster as the job changes.

Makita also built in the control features you want on a cordless grinder that may see real production use. Active Feedback-sensing Technology turns the motor off if the wheel is suddenly forced to stop. The electric brake stops the wheel in 2 seconds or less. Anti-restart protection helps prevent startup when a battery is inserted with the switch locked on. Put plainly, this is the stuff that makes the tool easier to trust when you are working overhead, in awkward spots, or around finished surfaces where a runaway wheel is not an option.

From a durability standpoint, the GAG11Z is set up for harsh jobsite conditions. It has a reinforced metal gear housing for long-term toughness, spiral bevel gears for smoother power transfer, and wire mesh intake covers to help keep debris out of the motor. Makita also includes Extreme Protection Technology for improved dust and water resistance. That matters if this grinder is going to live around masonry dust, metal filings, or exterior punch-list work where tools do not get babied.

On the user side, Makita kept it practical. The slide switch with lock-on works well for longer grinding passes, the soft start helps tame startup reaction, and the rubberized soft grip makes the tool easier to hold onto during repetitive work. This is also an AWS-capable angle grinder, which means it can communicate wirelessly with an AWS-equipped dust extractor when you add the AWS Wireless Transmitter, sold separately. If you do concrete grinding or dust-sensitive interior work, that wireless dust extractor control is more than a convenience. It cuts down on constant vacuum runtime and keeps the extractor running only when the tool is actually in use.

System fit is straightforward. The GAG11Z is part of the Makita 40V max XGT platform and is compatible with Makita 40V max XGT Lithium-Ion batteries only. It is sold as a bare tool, so batteries and charger are not included. That makes the most sense for contractors and serious users who already own XGT batteries and want to expand into high-demand cordless grinding without buying duplicate power sources.

Who should buy it? This grinder makes the most sense for metalworkers, electrical contractors, plumbers, remodelers, concrete crews, and general contractors who want cordless mobility without giving up serious output. If quick wheel changes, variable speed control, brake-equipped safety, and XGT platform compatibility matter to your workflow, this is a strong fit. If you do not already own Makita XGT batteries and charger, just budget for that up front because this tool is clearly aimed at users building around the 40V max XGT system.

Fast changes, real control, and built for XGT users

The Makita GAG11Z is the kind of cordless grinder that makes sense when you are actually using it all day, not just reading the spec sheet.

• Who it's for: Pros and serious users already on Makita XGT who need a cordless angle grinder for metal cutting, grinding, concrete work, and service calls where cords get in the way.
• Why it stands out: X-LOCK speeds up wheel changes, the variable speed range makes it more versatile than a one-speed grinder, and the brake plus AFT add the kind of control you appreciate the first time a wheel binds.
• Worth knowing: This is a bare tool, so no battery or charger in the box. It is also AWS-capable, but you need the separate transmitter to use that feature.

• Is this grinder sold with a battery and charger? No. The GAG11Z is a bare tool, so the battery and charger are sold separately.
• What battery platform does it use? It is compatible with Makita 40V max XGT Lithium-Ion batteries only.
• Does it use standard wrench-on wheels? It uses the X-LOCK accessory interface, which is designed for tool-free wheel changes.
• Does this grinder have variable speed? Yes. It has a variable speed dial with a 3,000 to 8,500 RPM range.
• Can it connect to a dust extractor? Yes. It is AWS-capable and can communicate wirelessly with an AWS-equipped dust extractor when used with the Makita AWS Wireless Transmitter, sold separately.