Throw Out the Nylon Spool and Clear Brambles With Steel Cable
Throw Out the Nylon Spool and Clear Brambles With Steel Cable

Throw Out the Nylon Spool and Clear Brambles With Steel Cable

Six twisted steel cables on a steel disc. It screws on where the line spool was, and there is no line left to break, feed or rewind

ShieldCheck 30 days to try it. Return it for a refund of the purchase price.
StarFour No Line to Rewind
StarFour Six Steel Cables
StarFour Fits Gas Trimmers
StarFour 30-Day Returns
Man kneeling by an overgrown fence line next to his gas trimmer fitted with the Thornwell steel wire head
Thornwell steel wire head mounted under the guard of a gas string trimmer, six twisted steel cables
Man in safety glasses clearing weeds and brambles along a wooden fence with the steel wire head
Close-up of the twisted steel cables and crimped tip on the steel disc
Thornwell steel wire head held in a gloved hand, about the size of a palm
Ditch bank half cleared with the steel wire head, half still overgrown
What comes in the box: one Thornwell steel wire head and the threaded adapter kit
Thornwell steel wire trimmer head
Man kneeling by an overgrown fence line next to his gas trimmer fitted with the Thornwell steel wire head
Thornwell steel wire head mounted under the guard of a gas string trimmer, six twisted steel cables
Man in safety glasses clearing weeds and brambles along a wooden fence with the steel wire head
Close-up of the twisted steel cables and crimped tip on the steel disc
Thornwell steel wire head held in a gloved hand, about the size of a palm
Ditch bank half cleared with the steel wire head, half still overgrown
What comes in the box: one Thornwell steel wire head and the threaded adapter kit
Thornwell steel wire trimmer head
For gas string trimmers, straight or curved shaft

Thornwell Steel Wire Trimmer Head

$89.98 $239.94 Save 62%
Adapter Kit Included
CheckCircle Six twisted steel cables replace the nylon line: nothing to feed, nothing to rewind
CheckCircle Goes through thick weeds, brambles and tall grass along fences, ditches and the edge of the woods
CheckCircle Screws on in place of the line spool, with a threaded adapter kit in the box
Three heads come to $29.99 each: one on the trimmer, two spares, or one for the neighbor

Choose how many

Best Value
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Free US shipping on every order
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30-Day Returns
Refund of the purchase price
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Adapter Kit
In the box with every head

It is made for gas string trimmers, straight or curved shaft. It screws on where the nylon line spool was, and the adapter kit in the box covers the common gearbox threads, including M10x1.25 left and M8x1.25 left. It is not made for battery trimmers.

Engine off. Turn the trimmer over, unscrew the nylon spool, pick the adapter that matches your thread, then screw the wire head on and tighten it. It takes a few minutes with the tools you already have.

One Thornwell steel wire head per unit ordered, with a threaded adapter kit.

Thornwell Steel Wire Trimmer Head

Thornwell Steel Wire Trimmer Head

$89.98

The Line Breaks Just When the Weeds Get Thick

It snaps on the fence post, it welds itself inside the spool, and you end up on the tailgate rewinding line instead of cutting. Nylon was made for lawn edges, not for brambles

The Line Breaks Just When the Weeds Get Thick

For the Man Who Still Clears His Own Land

The fence line, the ditch, the edge of the woods, the path to the shed. You already own a gas trimmer and you still do the work yourself. You just want a head that keeps going

For the Man Who Still Clears His Own Land

Six Steel Cables Instead of Two Pieces of Plastic Line

The cables are twisted steel strands, crimped at the tip, fixed to a steel disc that spins where the spool used to be. They slap through thick stems and brambles, and there is no line to feed out

Six Steel Cables Instead of Two Pieces of Plastic Line

Four Things That Change When You Swap the Spool

What you get with a steel cable head on the trimmer you already own

SealCheck
No More Rewinding
No spool to open, no line to cut to length, no line welded inside the head. The cables stay on the disc.
SealCheck
Made for the Thick Stuff
Brambles, tall weeds and tough grass along fences, ditches, paths and the edge of the woods.
SealCheck
Fits Gas Trimmers
Straight or curved shaft. The threaded adapter kit in the box covers the common gearbox threads.
SealCheck
Screws On in Minutes
Unscrew the spool, pick the adapter, screw the head on. The tools you already have are enough.
Four Things That Change When You Swap the Spool

The Steel Wire Head Next to a Nylon Line Spool

A line spool is fine for a lawn edge. Here is what changes when the work is brambles and thick weeds

GET MY WIRE HEAD
Thornwell Steel Wire Head
Thornwell Steel Wire Head
 Nylon Line Spool
Nylon Line Spool
No line to feed or rewind
Twisted steel cables, not plastic
Made for brambles and thick weeds
No line welded inside the spool
Adapter kit for gas trimmers
30-day returns
GET MY WIRE HEAD
Step by step

From Nylon Spool to Steel Cable in Five Steps

What you do, in order, the first time you put it on

Step 1
Take the Spool Off
Engine off and cool. Turn the trimmer over and unscrew the nylon line spool from the gearbox.
Step 1
Step 2
Pick the Adapter
Find the adapter in the kit that matches the thread on your gearbox, such as M10x1.25 left or M8x1.25 left.
Step 2
Step 3
Screw the Head On
Screw the steel wire head onto the gearbox with the adapter and tighten it firmly.
Step 3
Step 4
Gear Up
Safety glasses, gloves, long pants and boots. Keep the guard on the trimmer and people and pets well away.
Step 4
Step 5
Clear the Fence Line
Work the brambles and thick weeds along the fence, the ditch and the paths. No stopping to rewind line.
Step 5
30-Day Returns
Free US Shipping
Adapter Kit Included
Secure Checkout (SSL)

A Threaded Adapter Kit Comes in the Box

Gas trimmers do not all use the same thread under the spool. The kit has the common ones, including M10x1.25 left and M8x1.25 left, so the head goes on the trimmer you already own

A Threaded Adapter Kit Comes in the Box
30-DAY RETURNS · FREE US SHIPPING
Clear the Fence Line Before Winter Sets In

Clear the Fence Line Before Winter Sets In

Here is what ships to you:
· 1, 2 or 3 Thornwell steel wire trimmer heads
· A threaded adapter kit with each head
· Free US shipping
· 30 days to return it for a refund of the purchase price

GET MY WIRE HEADArrowRight
SealCheck Use it for up to 30 days. If it does not fit your trimmer or does not do the job, write to us and return it for a refund of the purchase price.

The Questions Men Ask Before They Order

Straight answers about fit, use and what comes in the box

Will it fit my trimmer? Plus
It is made for gas string trimmers, straight or curved shaft, that take a screw-on line spool. The adapter kit covers the common gearbox threads, including M10x1.25 left and M8x1.25 left.
Does it work on battery trimmers? Plus
It is not made for battery trimmers, and we do not promise it will fit or work on them. It is made for gas trimmers.
What can it cut? Plus
Brambles, thick weeds, tall and tough grass, along fences, ditches, paths and the edge of the woods. It is not made for cutting trees, branches or anything metal.
Do I still need nylon line? Plus
No. The six steel cables do the cutting, so there is no line to buy, feed or rewind.
How do I put it on? Plus
Engine off, turn the trimmer over, unscrew the nylon spool, pick the adapter that matches your thread and screw the head on. A few minutes with the tools you already have.
Is it safe to use? Plus
Use it like any trimmer head: keep the guard on, wear safety glasses, gloves, long pants and boots, and keep people and pets well away. Stay clear of rocks, wire fencing and hard objects. Read your trimmer's manual.
Why order 3? Plus
One goes on the trimmer and two stay on the shelf as spares, or one goes to the neighbor. Three come to $29.99 each instead of $39.99 for one.
What if it does not fit my trimmer? Plus
You have 30 days from delivery. Contact us with your order number, send it back, and you get a refund of the purchase price. US shipping is free.