0.065 vs 0.080 Trimmer Line: Which One Should You Buy?

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0.065 vs 0.080 trimmer line: the quick answer

Pick the diameter the trimmer accepts, then match shape and length to the growth. The 0.065 lines compared here cover round and star shapes, bulk lengths from 220-foot to 600FT, and packs from refill spools to bulk line. A 0.080 line is the thicker step up, so it fits the choice only where the trimmer accepts the thicker diameter.

What to weigh before choosing

Factor	What to check
Diameter fit	The trimmer must accept the diameter bought; the listings here state acceptance of 0.065 line
Line shape	Round line for medium and heavy grass and weeds; 6-point star shape for larger jobs and frequent use
Length and pack	426FT and 220-foot spools, 600FT bulk line, and 11ft refill spools in a pack of 12 spools plus 3 caps
Power fit	Gas, electric and cordless trimmers; Ryobi 18v, 24v and 40v trimmers for the refill spools

The 0.065 lines compared

The lines below appear in round spool, round bundle, refill spool and star line order.

Viabrico round trimmer line

Round 0.065 line in a 426FT spool at 0.69LB, in orange, for gas, electric and cordless trimmers that accept 0.065 line. The maker claims a tensile weight of 110 LB, a deterioration cycle of 5 years, and a cutting surface area increase of 300% from the round shape. The line is precision-wound to reduce misfeeds, jamming and tangling. Who it is for: a reader who wants a bulk round spool for tough vegetation across gas, electric and cordless trimmers. Who should skip it: a reader who wants preloaded refill spools for a named trimmer, since this listing is bulk line rather than refill spools.

Eventronic round trimmer line

Round 0.065 line for medium and heavy grass and weeds, for gas and electric trimmers and for corded and cordless string trimmers, with universal fit across brands including Echo, Stihl, Husqvarna, Redmax, Ryobi, Black and Decker, Cub Cadet, Weed Eater, Poulan and MTD. The title lists 600FT, while a later note in the same listing says 580FT. The line is bundled with heavy-duty zip ties instead of a plastic spool, and the note warns against cutting both zip ties at once to avoid uncoiling. The maker lists more than 10 years specialising in trimmer line, and a deterioration cycle of up to two years. Who it is for: a reader who wants a long round bundle for medium and heavy grass across many trimmer brands. Who should skip it: a reader who wants a plastic spool, since this line is bundled with zip ties instead.

YWTESCH Ryobi refill spools

Preloaded 0.065 line refill spools for Ryobi One+ trimmers, in 18v, 24v and 40v models, with 11ft of line per refill and a pack of 12 spools plus 3 caps. The maker lists automatic feeding spools that remove manual winding, and a tensile strength of over 100 lb with a claim of 30% more durability than other brands. Who it is for: a reader with a Ryobi trimmer who wants to swap spools without winding line. Who should skip it: a reader with another trimmer brand, since this listing is made for Ryobi trimmers.

Arnold star trimmer line

Commercial grade 0.065 line in a 220-foot spool, with a 6-point star shape that the listing says enhances cutting performance for larger jobs and frequent use, with universal fit. The listing names a warranty but states no warranty term. Who it is for: a reader who wants a star-shaped line for larger jobs. Who should skip it: a reader who wants a round line, since this line uses a star shape.

How to choose between 0.065 and 0.080

Start with fit. A trimmer that accepts 0.065 line takes the bulk lines compared here, while the refill spools suit Ryobi 18v, 24v and 40v trimmers; a trimmer that accepts 0.080 takes the thicker diameter. Diameter is not a figure to guess, because a line that does not fit the trimmer head cannot feed as the listing describes.

Shape and length come next. The Eventronic round line is stated for medium and heavy grass and weeds, while the Arnold star line is stated for larger jobs and frequent use. Length sets how often line needs replacing: a 426FT spool or 600FT bundle holds more line than one 11ft refill, and a pack of 12 spools plus 3 caps suits a reader who prefers swapping to winding.

Growth is the remaining check. Medium and heavy grass and weeds suit the Eventronic round line as stated, while tough vegetation is the Viabrico claim. Judge a 0.080 line on the same points: fit, shape, length and growth, rather than on diameter alone.

Safety

Wear eye and hearing protection and sturdy shoes. Clear sticks, stones and other debris before trimming, and keep children, pets and bystanders away from the work area. Refuel only with the engine off and cool. See the manual for the trimmer before changing line.

FAQ: mowing large lots

Will 0.065 line fit a trimmer that takes 0.080 line?

Only where the trimmer accepts 0.065 line. The listings here state acceptance of 0.065 line for gas, electric and cordless trimmers, and for Ryobi 18v, 24v and 40v trimmers in the refill pack. Check the trimmer manual for the diameters it accepts before buying line.

What lengths do the 0.065 lines come in?

The Viabrico spool lists 426FT. The Eventronic title lists 600FT, while a later note in the same listing says 580FT. The Arnold spool lists 220-foot. The YWTESCH refills list 11ft per refill.

Is round or star line better for heavy growth?

The Eventronic round line is stated for medium and heavy grass and weeds. The Arnold star line is stated for larger jobs and frequent use. Pick shape by the growth and the job size, with fit to the trimmer ahead of shape.

Do these lines suit cordless trimmers?

The Viabrico line suits gas, electric and cordless trimmers that accept 0.065 line. The Eventronic line suits corded and cordless string trimmers. The YWTESCH refills suit Ryobi 18v, 24v and 40v trimmers.

How do the refill spools differ from bulk line?

Refill spools arrive preloaded and swap in without manual winding, in a pack of 12 spools plus 3 caps. Bulk line comes as a spool or a zip-tie bundle and winds onto the trimmer head. The Eventronic bundle warns against cutting both zip ties at once to avoid uncoiling.

Is a thicker line always the better choice?

No. A thicker line only helps where the trimmer accepts it and the growth calls for it. Fit comes ahead of shape, length and growth.

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