Generep Weed Eater Spool for Black and Decker AF-100,30 Feet
✅ PROS
- Drop-in fit for AF-100/AF-100B models — no modding, no filing, no swearing
- Pre-wound with 30 ft of .065 line — roughly 2x the runtime of OEM spools before reloading
- Includes 3 spools per pack, bringing per-spool cost well under half of Black+Decker branded replacements
❌ CONS
- Line is thinner than the .080 OEM spec — handles grass fine but struggles with thick weeds and sappy growth
- Bump-feed mechanism occasionally over-feeds, wasting line on hard surfaces like concrete edges
The Verdict
Let’s be straight about trimmer line: it’s a consumable, and the OEM stuff from Black+Decker is priced like it’s machined from gold. The Generep 3-pack for the AF-100 undercuts that dramatically — but does “cheaper per spool” mean “cheaper performance”? I tested these against the factory spools over a month of weekly trimming. Here’s what actually matters.
What’s in the bag
You get three pre-wound spools, each loaded with 30 feet of .065-inch twisted line. The spools are molded to match the AF-100’s retention tabs exactly — no adapters, no trimming, no YouTube tutorial required. The line is already fed through the eyelets, so it’s literally pull the old spool out, drop this one in, thread the line, done. For a weekend warrior who hates fiddling with trimmer heads, that’s the whole ballgame.
The .065 diameter is the first spec to note. OEM AF-100 spools ship with .080 line. That’s a 19% reduction in thickness, and it changes how the trimmer behaves.
Real-world performance
On standard residential duty — fescue, bermuda, light weeds along a fence line — the Generep spool performs admirably. The thinner line cuts faster and with less strain on the motor, which means your battery (if you’re on a cordless AF-100) runs a touch longer per charge. The pre-wound 30 feet also means you’re not reloading mid-yard. One buyer noted, “I trimmed my whole half-acre lot and still had line left — the factory spool died halfway through.” That matches my experience: roughly double the runtime per spool versus OEM.
But here’s the tradeoff. That thinner line snaps more readily when you hit anything with real resistance. Thick blackberry vines, wet overgrown grass, or trimming along a brick paver edge will eat through line noticeably faster than the .080 OEM would. Another reviewer put it plainly: “Great for regular grass, but I went through half a spool just clearing the base of my fence line where the weeds were thick.”
The bump-feed also runs slightly hot. Tapping the head on the ground to advance line can feed more than needed, especially when the spool is fresh. You’ll waste some line on hardscape if you’re not careful. It’s not a dealbreaker, but it’s a real quirk.
Build quality and fit
The plastic on the spools feels dense and holds up to the heat generated by friction at the head. I’ve seen cheap aftermarket spools warp after one session in 90-degree heat; these didn’t. The retention tabs seat snugly — no rattling or wobble at full RPM.
One thing worth noting: these are only for the AF-100, AF-100B, and the GH600/GH610 series that share the same head. They won’t fit the larger AF-300 or the 20V cordless models with the different spool housing. Check your model number before ordering.
Who should buy these
Buy them if you have an AF-100, do routine lawn maintenance, and are tired of paying $8–10 for a single OEM spool that runs out halfway through the season. At roughly a third of the per-spool cost, even with slightly faster line consumption, you come out ahead.
Skip them if you’re a heavy-duty user — commercial trimming, tackling blackberry thickets, or doing lots of edging against concrete. The thinner line will frustrate you, and you’d be better served by the .080 OEM line or a bump-feed head that accepts bulk line.
FAQ
Q: Will these fit my Black+Decker AF-100 that came with a .080 spool? A: Yes, the spool housing is the same. The line is .065 instead of .080, but it fits and feeds properly. You’ll just get less cutting aggression on thick growth.
Q: How do I reload when the 30 feet runs out? A: Unlike OEM spools that are sealed, these can be rewound with bulk .065 line — unsnap the spool, wind it evenly, feed through the eyelet. Or just buy another 3-pack; at this price, many people don’t bother rewinding.
Q: Will this work on my Black+Decker 20V cordless trimmer? A: Only if it’s the AF-100 or AF-100B 12V model. The 20V trimmers (like the LST300 or LSTE525) use a different spool design. Measure your existing spool’s diameter and compare before ordering.
The Verdict
Rating: 4.2/5
The Generep spool pack is a smart value play for the average homeowner with an AF-100. It fits perfectly, doubles your runtime per spool, and costs a fraction of OEM replacements. The thinner line and occasional over-feed are the only real compromises — and for the price difference, most casual users will happily accept them.
Buy it if you want dependable, cheap trimmer line for routine yard work. Skip it if you regularly battle heavy weeds or need the thicker .080 line for tough jobs.
Either way, you’re spending less than the dealership-priced OEM spools — and that’s a win.
Where to Buy
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Last updated: 2026-08-06. Ratings and prices current as of review date. Verify on Amazon before purchasing.