Makita's Cosmos Blade System is a range of circular saw blades developed specifically around the performance characteristics of Makita's LXT 18V and XGT 40V MAX cordless circular saws. The blade designs are optimised for the lower spindle speeds that battery-powered saws typically produce compared with mains tools, and the geometry is tuned to maintain cut quality across a range of timber, sheet material and composite substrates commonly found on UK building sites.
This guide explains what the Cosmos system actually is, which blade types exist within it, and how to match the right blade to the material you are cutting.
Why blade design matters for cordless saws
A mains circular saw typically spins its blade at 5,000 to 5,500 rpm. A cordless circular saw on an 18V platform commonly spins between 3,200 and 4,600 rpm depending on load. That lower speed range means the blade has less time per rotation to clear waste material from the kerf, and if the blade geometry is designed for mains-speed tools, cut quality, finish and heat generation can all suffer.
Makita's Cosmos blades address this by engineering the tooth geometry, gullet depth and side clearance angles for the speed ranges produced by their battery saws. The result is a blade that maintains a clean cut edge at the speeds the tool actually produces, rather than one optimised for faster, mains-powered spindle speeds.
Cosmos blade types in the range
Makita structures the Cosmos range around the primary material categories that tradespeople cut most often.
The general purpose wood blades in the Cosmos range use an ATB (alternate top bevel) tooth profile, which suits ripping and cross-cutting natural timber, treated structural timber and flooring boards. The alternate bevel on adjacent teeth shears wood fibres cleanly rather than tearing them, which matters when the cut edge will be visible or when you are fitting timber that will sit hard against another surface.
Makita also produces Cosmos blades for sheet materials, including plywood, OSB and MDF. These use a higher tooth count with a finer bevel, which reduces tear-out on face veneers and laminates. For site work where you are cutting kitchen carcasses, stair treads or finished ply, the difference between a general-purpose and a sheet-specific blade is visible in the cut edge.
For tradespeople cutting engineered timber joists and I-beams, Makita offers Cosmos blades rated for structural engineered wood products. These address the resins and bonding agents present in LVL (laminated veneer lumber) and I-joist flanges, which can quickly blunt conventional TCT blades.
Blade diameter and saw compatibility
Makita's 18V LXT circular saws, including the DHS680 and DSS611, take 165mm blades. The 36V (twin 18V) models such as the DHS900 take 235mm or 260mm blades depending on variant. The XGT 40V MAX platform, including the HS011G, uses 165mm through to 216mm blades. Always confirm the bore diameter (the hole at the centre) when selecting a replacement blade. Makita LXT saws use a 20mm bore; the XGT range also uses 20mm. Most Cosmos blades specify bore size clearly on the packaging.
How long a Cosmos blade lasts
Blade life depends heavily on the material being cut and the operator's technique. Cutting into embedded fixings, knots in structural timber, or composite materials without the correct blade specification shortens life significantly. A well-specified Cosmos blade used on clean timber and sheet material, with correct cutting depth set at no more than 5mm below the material, should last a full working season of trade use under normal conditions.
Makita recommends inspecting blades at the start of each working day for missing or chipped teeth, and replacing any blade where more than two adjacent teeth are damaged, as the load distribution on remaining teeth increases.
FAQ
What is Makita Cosmos? Makita Cosmos is a range of circular saw blades designed specifically for Makita's LXT and XGT cordless circular saws. The blades are engineered for the speed ranges these saws produce, improving cut quality and finish compared with blades designed for mains-speed tools.
Are Makita Cosmos blades compatible with other brand saws? Cosmos blades use standard circular saw bore dimensions and will physically fit other saws with matching spindle sizes. However, the tooth geometry is optimised for Makita's speed range, so performance may differ on tools with significantly different rpm characteristics.
What blade should I use for cutting plywood with a Makita circular saw? Makita's Cosmos sheet material blades with a higher tooth count and fine ATB profile are the appropriate choice for cutting plywood, particularly where the face veneer or laminate finish must remain clean.
What is the difference between an ATB and a TCT blade? TCT (tungsten carbide tipped) describes the material the tooth tips are made from. ATB (alternate top bevel) describes the geometry of those tips, with each alternate tooth angled in the opposite direction to produce a shearing cut. Most quality circular saw blades are TCT with various geometric profiles including ATB, flat top (for ripping), and combination profiles.
Can I use Makita Cosmos blades on the XGT 40V MAX platform? Yes. Cosmos blades in the appropriate diameter and bore size are compatible with XGT circular saws including the HS011G. Check the blade diameter and bore specification on the Makita UK product page before purchasing.
Where can I find Makita Cosmos blades in the UK? Makita Cosmos blades are available through Makita's UK trade distribution network. The full range is listed at makitauk.com under the accessories section for the relevant circular saw model.
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