Oregon Grass Blade 255mm
A 255mm hardened-steel 4-tooth grass blade for petrol brush cutters that want a faster, smoother cut than a 2- or 3-tooth blade through grass and weeds.
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Pros
- Four teeth give a smoother, faster cutting action than a 2- or 3-tooth blade at the same RPM
- 255mm diameter suits mid-size petrol brush cutters without overloading the gearbox
- Cuts grass, weeds and light ground cover cleanly in a single pass
- Fits most brush cutters via the standard 25.4mm bore and reducer rings
Cons
- More teeth mean less bite per tooth, so it's still no match for brambles or woody stems
- Edge dulls or chips quickly against stones, fence wire or compacted soil
- Not a substitute for an 8-tooth or saw blade once growth turns woody
What it does
The Oregon Grass Blade 255mm is a steel cutting blade with four curved teeth, sitting between the simpler 2-tooth blades and the more aggressive 8-tooth brush blades in how it cuts. The extra teeth (compared with a 2- or 3-tooth design) mean each tooth takes a smaller bite per revolution, which tends to give a smoother, less jarring cutting action and a slightly finer finish through grass, weeds and light ground cover. It’s aimed at users who want to move up from a nylon line head for speed and reach, without needing the heavier chopping action of a dedicated brush or saw blade. Think lawn edges gone shaggy, verges, allotment paths and paddock margins rather than scrubland full of saplings.
What to fit it to
This is a bolt-on metal blade, so it only suits brush cutters built to take metal cutting attachments — normally petrol machines with a rigid straight shaft, rather than line-only trimmers or lighter cordless models without a metal-blade rating. The bore is the widely used 25.4mm standard, and most machines already carry a matching reducer ring or have one included in the box. At 255mm across, it sits in the common mid-range diameter, so it works with a broad spread of mid-power petrol brush cutters without demanding the extra torque a larger 300mm blade would need. As always, check the bore size and the fixing nut or bolt pattern against your own machine before assuming a straight swap between brands, since fitting hardware isn’t fully standardised.
Honest limitations
A 4-tooth grass blade is still built around grass and weeds, not brush clearance. Anything genuinely woody — brambles, saplings, hedge offcuts thicker than a finger — will tend to bend or deflect the blade rather than get cut cleanly, and pushing it into that kind of growth is a good way to blunt or chip a tooth fast; an 8-tooth or dedicated saw blade is the better tool once vegetation turns woody. The hardened steel holds a usable edge through normal grass cutting, but one strike on a hidden stone, buried wire or compacted soil is enough to roll or chip a tooth, and there’s no filing that fully restores it — most users either swap the blade or have it professionally resharpened. As with any metal blade attachment, solid eye, face and leg protection matter, since debris and stone fragments can be thrown at real speed.