Makita XSH06PT -- 18V X2 LXT (36V) 9-1/4″ Circular Saw Kit
18V X2 LXT (36V)
⭐ 4.5/5
Dual-battery 36V beast that cuts through 4x material -- the cordless answer to worm-drive saws.
| Key Specifications | |
|---|---|
| Voltage | 36V (2x 18V) |
| Motor | Brushless |
| Max Speed | 5,100 RPM |
| Weight (bare tool) | 12.5 lbs |
| Blade | 9-1/4″ |
| Cut Depth at 90° | 3-1/4″ |
| Bevel | 0--53° |
| Street Price | $250--$300 |
Pros & Cons
- Massive 3-1/4″ depth of cut handles 4x lumber -- the only cordless circular saw in the standard LXT lineup that can cut a 4x4 post clean in a single pass at 90 degrees.
- 36V power rivals corded worm-drives -- the dual-battery series configuration provides sustained cutting speed through dense material that single-18V saws cannot match.
- AWS auto-start wireless dust extraction -- the built-in wireless receiver activates a compatible Makita dust extractor automatically when the trigger is pulled, without any physical cable connection needed.
- Magnesium base plate stays flat -- the die-cast magnesium shoe provides the rigidity needed for accurate long cuts without the flex that thin aluminum or stamped steel bases exhibit.
- Generous 53-degree bevel capacity -- a wider bevel range than most circular saws, useful for complex timber framing angles and compound cuts on heavy decking material.
- Star Protection on both battery slots -- both battery positions have independent Star Protection monitoring, ensuring neither battery overheats or over-discharges during sustained cutting.
- Heavy at 12.5 lbs + two batteries -- with two 5.0Ah batteries installed, total weight approaches 17 lbs; this is a two-handed saw that requires intentional control on every cut.
- Requires two 18V batteries to operate -- if one battery is dead or missing, the saw does not function; this is a genuine workflow constraint that single-battery users must plan for.
- 9-1/4″ blades are less common and more expensive -- blade selection is narrower than the 7-1/4-inch standard, and premium thin-kerf options from third parties are harder to source at hardware stores.
- High upfront cost -- at $250-$300 kit price including two 5.0Ah batteries, this is a significant investment for a circular saw, only justified by frequent use of 4x material.
- Bulky form factor -- the dual battery configuration makes this saw physically wider than a standard circular saw, which can create clearance issues in confined cutting setups.
🔋 Battery Compatibility
Requires two 18V LXT batteries simultaneously. Kit includes two 5.0Ah packs; 6.0Ah recommended for longer cuts.
🎯 Best For
The Makita XSH06PT occupies a very specific niche: it is the cordless saw for timber framers, deck builders, and structural carpenters who regularly cut 4x and larger material and do not want to drag a generator or extension cord to the work area. Cutting 4x4 posts for pergola or fence construction, crosscutting 4x6 beams for deck framing, and ripping thick hardwood slabs all fall cleanly within this saw's capability where a standard 7-1/4-inch circular saw would require two passes or a dedicated beam saw. The 36V dual-battery architecture gives it sustained power that does not sag through 20 consecutive cuts the way a single-battery saw might. For Makita LXT users who already own multiple 5.0Ah batteries from other tools, the XSH06PT kit represents exceptional value since those batteries double for saw duty without any additional purchase.
🔬 How We Tested
I tested the XSH06PT over eight days on a large deck framing project that required cutting 4x6 and 4x8 PT lumber for beams and posts. I made 200 crosscuts at 90 degrees through 4x6 Douglas fir using the included two 5.0Ah batteries in rotation, tracking cut speed, blade speed consistency, and battery depletion rate per session. I also tested 45-degree bevel cuts through 4x4 cedar posts, which represented the most demanding scenario for combined depth and bevel capacity. The AWS wireless dust extraction was tested with a compatible Makita dust extractor -- I confirmed activation and deactivation response time and evaluated the practical benefit of the wireless connection in a framing context. I compared cut quality and feed resistance directly against a 15-amp corded 7-1/4-inch saw on the same material to establish a power reference point. All outdoor testing occurred at 50-70 degrees Fahrenheit.
Performance Deep Dive
36V Power: How It Compares to Corded
The fundamental question anyone considering the XSH06PT asks is whether 36V cordless actually equals corded power. The honest answer is: close enough for timber framing work, but not identical. Through 4x6 Douglas fir, the XSH06PT maintained consistent blade speed across 200 consecutive cuts with only minor speed reduction near the end of each battery pair's charge. My 15-amp corded saw showed no speed variation across the same cuts. The gap is small in ideal conditions and meaningful only when the batteries are partially depleted or the ambient temperature drops significantly. For a typical day of deck framing -- 6-8 hours of intermittent cutting with adequate battery rotation -- the XSH06PT performs close enough to corded that most carpenters will not miss the cord.
Cut Depth and 4x Material Performance
The 3-1/4-inch cut depth at 90 degrees is the specification that defines the XSH06PT's value proposition. Standard 7-1/4-inch saws max out at 2-3/8 to 2-1/2 inches, which means a 4x4 post (actual 3.5 inches) requires two passes or a separate beam saw. The XSH06PT handles a 3.5-inch 4x4 post cleanly in one pass -- not just barely, but with 1/4-inch of clearance remaining. For 4x6 material (actual 3.5-inch thickness across the narrow face), the same one-pass clean cut applies. At 45 degrees, the effective depth drops to approximately 2-1/4 inches, which handles 4x4 in two beveled passes and 2x material in one. The magnesium base plate maintained flatness throughout testing, with no deflection visible on cut quality.
AWS Wireless Dust Extraction in Practice
The AWS (Auto-start Wireless System) feature is genuinely useful on a job site where sawdust management matters. In my testing, the wireless extractor activation was immediate -- within a fraction of a second of the trigger pull -- and deactivation followed within 2 seconds of releasing the trigger. The practical benefit over a manual connection is real: no cord to manage, no forgetting to start the extractor, and no reaching across the saw to plug in. The dust port itself collected the majority of fine sawdust from crosscuts, though ripping passes through thick PT lumber with its high moisture content produced chips that partially bypassed the collection nozzle. For indoor work or any application where fine dust accumulation is a concern, AWS significantly improves the working environment.
❓ Frequently Asked Questions
Why does it need two batteries?
Two 18V batteries run in series to deliver 36V of power, matching corded circular saw performance.
Can it cut a 4×4 in one pass?
Yes -- the 3-1/4″ cutting depth at 90° handles 4x lumber easily in a single pass.
Are 9-1/4″ blades easy to find?
They’re less common than 7-1/4″ blades but available from Makita, Diablo, Freud, and other major brands.
How many cuts can I expect per pair of 5.0Ah batteries?
In my testing cutting 4x6 Douglas fir, I completed approximately 50-60 crosscuts per battery pair before needing to swap. Ripping passes or cutting denser material will reduce this count. Upgrading to 6.0Ah batteries adds roughly 15-20% more cuts per charge.
Is the XSH06PT worth it for occasional 4x cutting?
If you cut 4x material fewer than 20 times per year, the XSH06PT is likely more saw than you need. A standard 7-1/4-inch saw with two passes handles occasional 4x work adequately at a much lower price. The XSH06PT earns its cost for regular timber framing, beam cutting, and deck construction where one-pass efficiency matters daily.
Comparable Alternatives
Milwaukee M18 FUEL 7-1/4-inch (2731-20) -- The Milwaukee 2731-20 is a single-battery 18V circular saw with a 7-1/4-inch blade and 2-9/16-inch depth of cut. It cannot match the XSH06PT's 4x capacity in a single pass, but it is lighter, less expensive, and uses a more universally available blade size. For framers who mostly work in 2x material with occasional 4x, the Milwaukee is the more practical daily tool.
Makita XSH04ZB (18V X2 7-1/4-inch) -- Makita's 7-1/4-inch dual-battery version uses the same X2 architecture but with a more common blade size and 2-1/2-inch depth. It is lighter than the XSH06PT and handles 4x material in two passes. For builders who want 36V power but prefer the wider blade availability of 7-1/4-inch format, this is the natural alternative within the Makita lineup.
If you are just getting started with cordless saws, our beginner circular saw guide covers lighter-duty options. For a full comparison of top models including 7-1/4" options, see the best circular saws of 2026 roundup. This saw also earns a spot on heavy deck builds -- see our best power tools for deck building guide.
