A nut that has been out in the weather for ten years is not coming off with penetrating oil and patience. This puts a hardened tip against one flat and winds it in until the nut cracks in half. The bolt underneath keeps its thread, which is the difference between a new nut and a new part.
Seized Nut Splitter Set
$59.00
$119.99
✅ Cuts a seized nut off without damaging the bolt thread
✅ Four sizes cover 9-12, 12-16, 16-22 and 22-27 mm nuts
✅ Forged 40CR steel with a chrome-plated body and hardened tip
✅ Driven by any wrench or socket you already own
✅ Moulded case keeps the four pieces together in the truck
Want it by Friday, 23. Oct?
What you get
Four splitters in a moulded case, sized 9 to 12 mm, 12 to 16 mm, 16 to 22 mm and 22 to 27 mm across the flats. Between them they cover the nuts on most cars, trailers, mowers and machinery. Nothing else is needed in the box, because you turn them with the wrench or socket already in your hand.
Materials
Forged 40CR alloy steel, chrome plated on the body to keep the rust off, with a hardened black screw rod carrying the cutting tip. The tip is the part doing the work, so it is run harder than the ring around it.
Care
Put a smear of grease on the thread before each job. A dry screw rod is harder to wind and wears the thread out faster than the cutting ever will. Wipe the tip clean afterwards, check it for chips, and put it back in the case so the four stay together.
Will it get the nut off your bolt?
Four figures that answer it before you buy.
4splitters
One for each size band, so you are not forcing the wrong ring onto a nut
9-27mm
The full span across the flats that the four cover between them
0threads lost
The tip stops at the nut, so the bolt underneath comes out reusable
0sparks
Cold cutting, which matters near fuel lines, paint, rubber and wiring
The nut comes off. The bolt stays.
Same seized nut, two ways off
One of them takes the bolt with it.
WithoutGrinder, heat and hope
Sparks onto the paint, a cut that runs into the thread, and a bolt you now have to drill out. On a suspension arm or near a fuel line it is not a job you want to start at all.
With the splitterSplit it, lift it off, move on
The ring goes over the nut, the screw winds in, the nut cracks. Two halves come away in your hand and the bolt is still good for a new nut.
What does the cutting
Four things worth knowing before it goes under the car.
Hardened Cutting Tip
Run harder than the nut it is biting into, and shaped as a wedge so the crack spreads across the flat instead of digging a hole.
Forged 40CR Body
The ring takes everything the screw pushes against. Forged alloy steel holds its shape there where cast metal would spread and let go.
Black Screw Rod
A coarse hardened thread you drive with an ordinary wrench, so the force builds slowly and you can feel the nut let go.
Four Sizes In A Case
Each size only fits its own band, so the case is how you find the right one under a car instead of trying all four.
Where a socket has already given up
The nuts that turn a one-hour job into a whole afternoon.
Exhaust and suspension
The bolts that have been through ten winters of salt and will not turn at all.
Outdoor and marine fixings
Gate hinges, trailer frames and dock hardware that live in the weather.
Machinery and farm gear
Mower decks and implements where the nut is rusted solid onto a shaft you need to keep.
Nuts already rounded off
Once the flats are gone a socket has nothing to grip. This does not need them.
Why not just cut it off with a grinder?
Fair question, and the last row is the honest answer.
Angle grinder or hacksaw
- The cut usually runs into the thread
- Not near fuel lines, paint or rubber
- Needs space to swing a disc
- Grinding dust over everything below
- Neither, just use a wrench
Seized Nut Splitter Set
- Comes out clean and reusable
- Cold, no sparks, no scorched paint
- Fits roughly where a ring spanner fits
- Two halves of a nut in your hand
- Slower than a wrench, so save it for the stuck ones
Turned with the wrench already in your hand
There is no handle to lose and no special driver to buy. The screw head is a plain hex, so a spanner, a socket and bar, or a ratchet all work. That also means you control how hard it goes in, and you feel the moment the nut cracks rather than finding out afterwards.
Three moves, start to finish
No power tools, no sparks, no drilling anything out afterwards.
1
First
Pick the size that just clears
Measure across the flats and take the band it falls in. A ring that is too big lets the nut move and the tip skate off.
2
Then
Seat it and wind the screw in
Line the tip up square on one flat, then turn steadily with a wrench. Grease on the thread makes this a lot easier.
3
Finally
Crack it and lift it away
You hear it go. Back the screw out, split the second side if the nut is thick, and the halves come off the bolt.
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Why Tradespeople Choose Galixo
Built to lastForged and hardened steel, not pot metal
Saves a tripDoes the job without a second pair of hands
Fits what you ownStandard sizes, no proprietary adapters
Tracked deliveryA tracking number on every order
90-day returnsWrong tool for the job? Send it back
Measure across the flats, not across the corners. The four bands are 9 to 12 mm, 12 to 16 mm, 16 to 22 mm and 22 to 27 mm, which in imperial runs from about 3/8 inch up to a little over 1 inch. Pick the band the nut falls in rather than the next size up.
Used properly, no. The tip is meant to stop at the base of the nut, so the thread underneath survives and takes a new nut afterwards. Wind it in steadily and stop when you hear the nut crack rather than driving on past it.
A few things worth knowing before you order. The nut is destroyed, always, so have a replacement ready. Turn it by hand only, because an impact wrench or a drill will bend the screw head long before the nut gives. The ring also has to go over the nut and sit square, so a nut pulled tight into a recess or flush against a plate is a job for a grinder. And on a very thick or a high-grade hardened nut you may need to split both sides, or get heat into it first.
Any spanner, socket or ratchet that fits the hex on the screw head. A longer bar gives you more leverage on a stubborn one, which is usually better than swinging harder on a short one.
We ship from two warehouses, one in California and one overseas, and the system picks whichever holds stock. To the US that is 5 to 15 business days in total from a California dispatch, or 12 to 25 business days from overseas. Every order gets a tracking number by email at dispatch. Shipping is free either way.
If your parcel has not arrived within 30 business days of dispatch, email us and we will reship or refund in full, your choice, with nothing to send back. You also have 90 days from delivery to return an item you no longer want. We reply to every message within one business day.