{"product_id":"universal-6-blade-razor-trimmer-head-manganese-steel-split-blades-25mm-bore","title":"Universal 6-Blade Razor Trimmer Head | Manganese Steel Split Blades, 25mm Bore","description":"\u003ch2\u003eNettles And Brambles Don't Care About Nylon Line\u003c\/h2\u003e\n\u003cp\u003eThere's a point where a line head stops being a tool and becomes a delaying tactic. Waist-high nettles, established bramble, woody stems, saplings coming up through a neglected corner — the line snaps, you feed more out, it snaps again, and after twenty minutes you've cleared a metre.\u003c\/p\u003e\n\u003cp\u003eSix manganese steel blades cut through all of it in one pass. The blades pivot, so hitting something solid swings them back instead of stopping the machine dead.\u003c\/p\u003e\n\n\u003ch3\u003eWhat The Design Gets Right\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManganese steel blades.\u003c\/strong\u003e The same spring steel family used for mower blades — hard enough to hold an edge through woody growth, tough enough not to shatter when it finds a stone.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSplit, pivoting blades.\u003c\/strong\u003e Six blades hinged rather than fixed. When one strikes a rock or a fence post it folds back and keeps rotating. A one-piece blade transmits that shock straight into the gearbox.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLess vibration than a solid blade.\u003c\/strong\u003e The pivoting arrangement is more forgiving through the shaft, which matters over an afternoon of clearing.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e25mm centre bore.\u003c\/strong\u003e The standard mounting for brush cutters. An adapter kit is included to cover the common variations.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFits petrol and electric machines.\u003c\/strong\u003e As long as the machine is rated for a metal blade and has a guard.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNothing to feed or replace.\u003c\/strong\u003e No spools, no line, no bump-feed head to jam.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCuts Through\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eThick and tall grass that flattens under a line head\u003c\/li\u003e\n  \u003cli\u003eNettles, docks and rank weed growth\u003c\/li\u003e\n  \u003cli\u003eBramble and woody stems\u003c\/li\u003e\n  \u003cli\u003eSaplings and scrub regrowth\u003c\/li\u003e\n  \u003cli\u003eRough field edges, verges and neglected ground\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBlade material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eManganese steel\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBlades\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSix, split pivoting design\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOverall diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e245 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBlade length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCentre bore\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e25 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFitting\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAdapter kit included\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIncluded\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 × trimmer head with blades\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eSafety\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eThis is a metal blade. Only fit it to a machine the manufacturer rates for metal blades, with the correct guard in place. Fitting it to a line-only trimmer is dangerous.\u003c\/li\u003e\n  \u003cli\u003eFull face shield, ear defenders, gloves, long trousers and boots. Metal blades throw debris much harder than nylon line.\u003c\/li\u003e\n  \u003cli\u003eKeep everyone at least 15 metres clear while it's running.\u003c\/li\u003e\n  \u003cli\u003eExpect blade thrust — the sideways kick when a blade catches something solid. Use the harness and both handles.\u003c\/li\u003e\n  \u003cli\u003eStop and inspect after any hard strike. Replace the head if a blade is cracked or a pivot is deformed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCommon Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWill it fit my trimmer?\u003c\/strong\u003e\u003cbr\u003eIf your machine has a 25 mm mounting and is rated for a metal blade, yes, and the adapter kit covers most of the rest. If your trimmer only ever came with a line head, don't fit this — the machine likely lacks the shaft, clutch and guard for it.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow thick a stem will it cut?\u003c\/strong\u003e\u003cbr\u003eComfortably through bramble, nettle and finger-thick saplings. Past roughly 2 cm of hardwood you want a proper brush blade or a saw — this will do it slowly and blunt fast.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan the blades be sharpened?\u003c\/strong\u003e\u003cbr\u003eYes, with a file, following the existing bevel. Take the same amount off each blade or the head goes out of balance and shakes the machine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it safe near fences and walls?\u003c\/strong\u003e\u003cbr\u003eSafer than a fixed blade, because the pivots absorb the strike. But it will still chip a fence post and mark stone, and it can throw fragments. Slow down at boundaries.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it work as a lawn trimmer?\u003c\/strong\u003e\u003cbr\u003eOverkill and imprecise. For lawn edges and around ornamental beds, keep using line. This is a clearing head for rough ground.\u003c\/p\u003e\n\n\u003ch3\u003eOrdering With Confidence\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eTracked shipping on every order\u003c\/li\u003e\n  \u003cli\u003eSecure checkout\u003c\/li\u003e\n  \u003cli\u003eResponsive customer support\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Zenca","offers":[{"title":"6-Blade Head","offer_id":44164157276247,"sku":"zenca-6bladehead","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/6242\/6199\/files\/main-image-3.jpg?v=1786692548","url":"https:\/\/shopzenca.com\/products\/universal-6-blade-razor-trimmer-head-manganese-steel-split-blades-25mm-bore","provider":"Zenca","version":"1.0","type":"link"}