
Thick blocks
The cone opens a heavy block along the grain.
32 or 42 mm · Square, round & hex shanks
A threaded steel cone that screws into a log and pushes it apart along the grain.
Kindling and logs up to about 10 cm (4 in) across.
Firewood rounds up to about 15 cm (6 in) across.
Each set is one cone in the size you picked and all three shanks. Two or three sets ship as separate parcels.

How it splits
The tip bites into the wood and the deep thread screws the cone in on its own. As it goes deeper the cone gets wider, so it wedges the fibers apart until the log cracks along the grain. You steer the drill; you do not have to push hard.
Once the tip bites, the cone screws itself into the log; you keep the drill straight.
The cone widens as it goes in and wedges the wood apart along its natural lines.
Three shanks screw into the cone: square, round or hex, depending on your drill.
Dense, wet or knotty wood takes longer and needs more drill.
How to use it

Square for a rotary hammer, round for a hammer drill, hex for a regular drill chuck.
Thread the shank into the cone and tighten it, then fit it to the drill.
Rest the log on the ground or against a block, never in your hand. Set the drill to a low speed and keep the bit straight into the wood.
Keep light pressure and let the thread draw the cone in until the log splits. If it binds, stop the drill and back it out.
Wear gloves and eye protection, keep loose sleeves away from the spinning cone, and use a drill with a side handle if it has one.
The specifics
Every figure here is the maker's own. Where the maker gives none, we say so.
cone width
Pick one size.
shanks included
Square, round, hex.
thread on the shanks
Screws into the cone.
split range
32 mm / 42 mm cone.
* Marked figures are the maker's own and are not measured by us.
Screw cone firewood splitting bit with three interchangeable shanks.
The drill is not included.
On the woodpile
Clips and photos of the cone at work.

The cone opens a heavy block along the grain.

Split a piece of firewood down into fire-starting sticks.

Run it in from the side to open a log lengthwise.

The drill does the work the axe used to.

The sharp tip starts the thread; the cone does the rest.

Go in square to the wood, not at an angle.
Compared with the usual options
Three ways to make firewood, and where each one fits.
| Feature | This cone bit | Axe or maul | Log splitter machine |
|---|---|---|---|
| No swinging | |||
| Uses the drill you own | No power needed | ||
| Fits in a toolbox | |||
| Big rounds over 15 cm | |||
| Makes kindling | Depends on the model |
Compared by type of tool, not by brand.
Free shipping on orders of $49 or more. Below that, standard shipping is a flat $4.95 to any of the 50 US states. Delivery takes 7–15 business days from the time you order, and that window already includes the 1–2 business days we take to process. Shipping & Delivery.
30-day returns. Items must be unused and in their original packaging. Email support@nexuratool.com with your order number to start a return. Returns & Refunds.
30 days from delivery. Email support@nexuratool.com with your order number and what you want to return. We reply with a return address — do not send anything back before you have it, or we cannot match the parcel to your order.
What we can take back: unused items in their original, undamaged packaging. Adhesives, sealants and lubricants cannot be returned once opened; the same goes for any item with a broken safety seal. That is a safety and hazardous-goods rule, not a preference.
Who pays: return shipping is paid by you, except when the item arrived damaged, faulty or was not what you ordered — then we cover it and refund the original shipping too.
Refunds go back to the original payment method within 5 business days of the return reaching us. Full returns policy.
QUESTIONS PEOPLE ASK
32 or 42 mm · Square, round & hex shanks
A screw cone splitting bit with three shanks. Free US shipping from $49, and 30 days to return it unused.