The Railroad Hori Hori – Redux

Railroad spike becomes a hori hori with riveted veg-tanned leather (finished February 2022)
The original hori hori knives I made from RR spikes (August 2016)

It’s useful on occasion to revisit one’s earlier work. The two photos above contrast the results of my ‘smithing over a six year period. The first picture is my latest hori hori creation, forged from an old railroad spike, hardened, sharpened and finished with walnut handle slabs. The second photo is a set of hori hori that I made for the Nikka Yuko Japanese Gardens in Lethbridge, AB. It was a great learning experience for me, and looking at the older photo now I can see both how my design has changed over time, and how my ‘smithing has changed.

A “before and after” of the forging process, 2022.

The big, iron block is a 250 lb. Japanese pattern anvil I purchased from my friend and mentor, Dave J Friesen of Crossed Heart Forge. Using that, and an eight pound hammer, has really increased my efficiency. There’s quite a bit of material to move in the spike. It’s a mid carbon steel so it’s not as tough as spring steel, but it starts out at 5/8″ thick, and I forge that down to 5/32″ at the hilt of the blade with a slight thickness taper to the point. Two holes are drilled in the handle for steel pins to secure the handle slabs.

The finished hori hori and the two hammers I use to forge with. 8 and 4 lbs. 2022.

The serrations have seen some modification over the years, too. For the Nikka Yuko hori hori, I used a half round file but it seemed to me the teeth were too shallow and didn’t saw very well. I then switched to a small chainsaw file for the knives made from coil spring, and that worked ok but I think the teeth were a bit small. The serrations, according to my research and personal experience, are designed to saw through woody materials such as thick roots and small branches. The latest iteration uses a large chainsaw file for deeper teeth which should make for quicker cutting and sharpening (less teeth to sharpen).

The scooped blade is formed by forging into a shallow piece of pipe, cut in half. The first railroad hori hori knives had a very slight scoop by forging with a round peen along the length of the blade. I leave the scale from forging on the blade as it inhibits rust, and it wears off over time anyhow because of digging in the soil.

The blade and handle are hardened in room temperature vegetable oil. This gives a hardness a bit below an axe, and allows for quick field dressing with a bastard file and chainsaw file if needed. There’s no need to make the edge razor sharp as the first stab into soil acts like sandpaper. The balance between hardness and toughness is important; it’s hard enough so that sharpening isn’t required too frequently, while remaining tough so the knife doesn’t snap when prying a plant out of the ground.

The handle is a simple affair: two slabs of walnut, or whatever scrap hardwood I have lying about, pinned with two steel rivets. A woodworking tool that I love to use ever since Dave J showed me is the Japanese saw file. It works quickly and leaves a finish that needs only light sanding to smooth out. The bevels on the handle are formed with that saw file. A coating of linseed oil seals and protects the wood.

Our tuxedo cat comes by for inspection.

After discussing the sheath design with my wife and striker, Lorinda, I decided to try a cross carry instead of the traditional wooden sheath or vertical sheath that’s common with factory models. The cross carry keeps the handle out of the way when bending over or kneeling, which is a very common stance in the garden. The vertical carry can make drawing the knife a bit awkward, and these knives are easily misplaced if not kept near at hand. This is an experiment at this point, but I really like how it came together.

The leather sheath is fitted to the scooped blade to ensure a snug fit while preventing the edges from slicing up the inside of the sheath. Copper rivets secure the belt loop and the sheath itself. I thought about using copper rivets on the handle, too, but decided on steel for the extra strength they provide.

I look now at the requirements for a good hori hori knife and I realize I picked a really hard tool to start with. Back in 2016 I had only been a hobby smith for about a year. The hori hori has a difficult blade shape, two sharpened edges, and needs just the right balance of hardness and toughness. I ruined a good number of promising knives when they warped after quenching and tried bending them back. Pretty sure the neighbours heard my dismay when the blade went <snap>! Other times I would spend an hour or more heating up a warped blade, forging it straight, normalizing it and quenching once again… only to have it warp again. Thankfully, I can say that no one who has purchased one my knives have had them break or bend, which is a common complaint about the factory models.

I’m looking at trying my hand at other hand tools, now that I have a good number of years of experience under my belt. Wood carving knives, draw knives and broad axes are next. Hopefully I can make at least one of each this year and see where that takes me.

Handles: Metal or Wood

We make broad forks, and many of them each year. Sometimes a client will ask if we can make the handles out of metal instead of wood, in the hopes that they can avoid breaking a handle if too much force is applied to the tool. Some believe that a breakable handle is a design flaw, but our decision to use wooden handles for all of our tools is a deliberate feature. Today I’m going to share our reasoning for that decision.

Wooden handles are lighter.

An average 4′ ash handle with 1.5″ diameter comes in at about 1.5 pounds in weight. The same length of schedule 40 black pipe with an outside diameter of about 1″ weighs 4.5 lbs! Two handles per broad fork means we’ve just added an extra 6 lbs of weight to a 12 lb tool, increasing its weight by 50%. Heavy tools are harder to use and bring on exhaustion that much faster.

Wooden handles are more comfortable.

Ever held a piece of metal pipe or rod in the cold? It’s not pleasant. The conductivity of heat in steel is a lot higher than compared to wood. That means cold, stiff hands when working in inclement weather. The inverse is true when working in the sun. Steel soaks up all that heat, again making the handle comfortable. Metal handles feel awful in wet, cold, sunny or hot weather which pretty much means all the time. No thanks!

Wooden handles are easily replaced.

There’s a reason why hardware stores stock wooden handles. They break with age, but more often break from misuse. Thankfully, a broken handle is not especially difficult to fix. Almost anyone with simple tools can replace a handle at home. As a matter of deliberate choice, we’ve designed our broad forks to use standard 4′ Garant brand shovel handles. These are stocked in many hardware stores and they take about ten or fifteen minutes to adapt to the fork’s steel socket.

This quality is the main argument for metal handles: they never break and never need to be replaced! But this must be weighed against the considerations above and against this last consideration which is that

Wooden handles reduce the chance of breaking the tool.

I’m not sure why it happens to be the case, and perhaps it’s always been this way, but it seems that it’s ok to push a tool to its breaking point time and time again until it finally breaks. Our modern throwaway culture certainly encourages a wasteful attitude, even when it comes to tools that could last many long years if they are treated with respect. In any case, when a tool is pushed beyond its limits a wooden handle, being the “weakest” part of the tool, means that it’s also the most likely part to break. This is a good thing.

Imagine a broad fork with metal handles. The tines are now the weakest part of the tool, and since the attitude of pushing a tool until it breaks is still firmly in place, that means it’s very likely that a tine will bend or snap off. Which is easier to repair: a wooden handle that can be picked up at the hardware store, or a piece of steel that needs welding equipment and expertise?

I hope that sharing our design considerations helps future customers, gardeners and tool enthusiasts alike realize that there are advantages when it comes to using wooden handles rather than their metal counterparts. A gentler attitude towards tool use, and perhaps work in general, may be of benefit as well. Hand tools speak to us through our use of them. It takes a sensitive “ear” to hear that communication, when we’re starting to push a tool too far. Next time you’re out in the garden or the workshop, slow down a little and see if you can “hear” what your hand tool is trying to tell you. It just might save you a trip to the hardware store.

The Crucible of 2021

The world has seen dramatic and seismic shifts in almost every manner this past year, and it’s helped many people reflect on their circumstances (especially with the nature of work) and whether something better could be conceived. For Lorinda and me, it’s given us ample time to consider how we structure our daily lives and in what ways we can better align ourselves with our ideals of meaningful work, work-life balance, peace and quiet, and resiliency.

This year we’re trying a different approach to ‘smithing. We’ve been in business for six years now and we have a fairly good sense of where to spend our production time. The plan is to create, in advance, a good number of products that we’re quite sure will earn us a solid income. Building up an inventory isn’t really a radical idea; most businesses have to operate on that model in order to keep up with demand. For us, however, it’s always been a “wait and see” approach. We put up an item for sale and wait and see if it sells. It keeps us very agile, but it doesn’t allow much room for branching into new products or processes since we’re always trying to catch up to demand.

That process of “just in time” production and shipping for online markets is very common these days, but the sense I get is that we, as a society, are shifting away from that. I see a future of more localized demand and supply, and part of getting on board with that system is to be able to put our product out there in the stores of local merchants. It’s precisely the opposite of online commerce, which has seen explosive growth over the past two years, but I think this last year has revealed its limits. Lorinda and I have done well enough for ourselves by moving in contrarian ways to that of society around us, and so we want to pivot to more local sales, less reliance on e-commerce, and establishing a market closer to where we live.

Hand axe forged from a reclaimed farrier’s rasp.

This mode of production will also free up time for us to stretch our artistic and ‘smithing abilities by trying new things. I aim to create more knives and axes (especially for woodworking) and Lorinda has already seen success with her creative blending of ironwork and locally scavenged driftwood. Blacksmithing is an interesting mix of creative and manufacturing pursuits. We’re shifting the balance in our forge with an eye towards a future that’s more local and more resilient. We hope you’ll join us.

Driftwood from Kootenay Lake mounted on hand forged brackets.

How about a little more Viking in your life?

We’ve been a supplier for Ragnar the Trader, a traveling Viking merchant, for a few years now and we wanted to share a few pictures of what some of that product looks like.

It’s an interesting process creating large batches of items (my wife and ‘smithing partner was practically dancing when we finished the 50th horn stand) when we forge everything by hand with hammer and anvil. Creating items wholesale requires patience, diligence and being ok with a degree of monotony. There are upsides to wholesale (though my wife may disagree), however : it requires a focus on shop economics and streamlining production, and it provides plenty of practice in the fundamental skills of blacksmithing.

The first blacksmith I studied with, Ontario Artist Blacksmith David Robertson, suggests that new ‘smiths focus on wholesale production for the advantages it provides. It may also be a form of self-selection, for only those truly dedicated to the craft would be ok with cutting, forging, polishing and oiling the same thing 50 times or more.

We’re proud of our wares and happy to have Ragnar sell them across the land! Be sure to visit his website, Etsy store or see him in person if you happen to be in Lethbridge or Edmonton this December.

A selection of items custom made for Ragnar the Trader.
Penannular brooches made in the style of the ancient Celts.
Hand forged cutlery ready for a meal of mutton and dumpling stew.
Mjolnir / Thor’s Hammer pendants with handmade rings.

Our Etsy Shop

Our Etsy shop: https://reforgedironworks.etsy.com

Etsy is an online commerce website that caters specifically to customers who want to find custom, vintage or handmade items. The worldwide web is a big place and it’s easy for a small site like ours to be overlooked by search engines, so having an online presence where customers are already looking for a business like ours (small, independent, family-run and focused on the highest quality) is a boon to us.

The focus of our website, Reforged Ironworks, is the hand forged, heirloom quality hand tools that we create. This space allows to share an in depth view of our process which gives our customers an understanding of what goes into every one of our handmade tools.

Ornamental ironwork, jewelry, and fire tools are among some of the other items we make, and these are featured on our Etsy page. We invite you to have a look to see what else we create.

As always, we welcome custom requests and projects. Contact us at info-at-reforgedironworks-dot-com.

Using a Russian Hoe

Weeding: rake just below the soil surface to cut down small sprouts. For deep rooted weeds like dandelion, the long blade and sharp point make it easy to dig the tap root out of the soil without bending down to pull by hand.

Digging: the sharp point and 6 1/2″ long blade make digging into soil or lawn a snap. Use it for edging and digging holes for potatoes or other root crops.

Cultivating: Again, the sharpened edges make cultivating the surface of the soil very easy to do. Since the tool is lightweight overall, and can be sized to fit you properly, there’s minimal stress on the body when working with this hand forged garden hoe.

Furrowing: by drawing the crook of the hoe along the surface of cultivated soil, a furrow is formed for planting seed. The deeper into the soil you press with the hoe, the deeper the furrow.

Starting a new garden bed all with this one tool: Dig the lawn first to loosen it up. Draw the hoe through the first few inches to cut the grass roots. Add compost or organic matter to your new garden patch and cultivate it using the sharpened point and to break up any dirt clods. Form furrows for seeds or dig holes for transplants or tubers. All done with one tool!

Here’s a video showing how three of our tools work well together: the Russian hoe, the broadfork and the hori hori:

2020 in Review

It’s about time for an update from the crew here. My wife has taken on a bigger and more direct role in how we do things in the forge. I’m grateful for her presence and dedication. We fully expected the pandemic to slam our business into the ground but it had the exact opposite effect. This website, and our Etsy shop, helped make 2020 one of our best years yet. That was the impetus for my wife to devote more of her time helping me with Reforged Ironworks.

A trend we noticed last year, despite the obvious move to purchasing online, was the renewed interest in “do-it-yourself” and buying local. This phenomenon helped drive interest in our gardening tools, which has always been the main purpose of creating our business. Also, the crazy increases in material prices for things such as newly manufactured wood and steel has reaffirmed our decision to make as much of our product with old and reclaimed materials.

In a lot of ways, it seemed that we were ahead of the curve. Can we stay ahead of it in the second year of a pandemic and with all the other shifting variables and concerns out there in the world? We won’t know until it’s come and past. I can say with some certainty, however, that not chasing fads and instead staying true to our focus and reason for doing the work we do, i.e. to create heirloom quality garden and homestead tools by hand from reclaimed materials, will most likely see us through any challenges that come our way.

– Tim

Preparing for Yaki-ire: Study and Practice

What is Yaki-ire

Yaki-ire, or clay tempering, is a style of steel hardening. It isolates the hardening to the places the bladesmith wants hard (such as the edge), while keeping the rest of the piece tough (the body and spine). If the style is perfected, it results in blades that combine the best qualities of steel: hardness and durability at the edge, and toughness as the foundation to prevent breaking from brittleness in the blade. The transition zone between the two qualities of steel is called hamon. I’m curious to see if a hamon, a sort of frosty, wavy line that delineates the transition, is visible on the blades I treated using yaki-ire.

Preparing the Clay

I took the sister blades I featured in my last post and applied a clay mask to each of them using the recipe I found on the Crossed Heart Forge website (a wealth of information, by the way). The basic recipe is:

  • 1 part clay (binds the mix)
  • 1 part crushed sand/grog (prevents cracking and shrinkage)
  • 1 part crushed charcoal (prevents flaking off in the fire due to heat expansion)

The goal is to crush these materials as fine as possible, for the smallest size grain determines the minimum thickness of the clay slip or mask that can be applied. This post covers how I prepared the clay mixture.

The swage block from Crossed Heart Forge brought back into grinding service.

Sand before crushing (left) and after (right). The sand’s from a local beach and was already very fine.

Firescale from around the anvil. It serves a similar purpose to sand/grog in clay.

Firescale ground into powder

Charcoal dust from sifting pieces for the forge. Nothing goes to waste!

The dust crushed into a very fine powder. It had a tendency to float everywhere when crushing it.

I mixed some clay I got from an art class with water to make it very thin and spread it out on a sheet.

After baking in the oven at 200 deg. F for a couple of hours.

The clay is ready to be crushed into a fine powder. This is the binding agent for the mixture.

Crushed clay!

Bringing it all together

Now that I had my three (four technically) constituent parts, I was ready to mix them in equal proportion (by volume) and add water. The consistency to aim for the mask that goes on the body of the blade is pancake batter. It seemed to me to be like the texture of mortar when laying down tiles.

The materials ready to be mixed. It took about a tablespoon of each material to make enough for both blades.

The dry mixture. Add water and apply!

My next post will feature a video where I mix and apply the clay mask to the hori hori. Stay tuned!

The Blacksmith’s Art – A Poem

Hammer, anvil, forge and steel

 Coercing metal into a new deal

Fire hot and coals alight

 Turning metal burning bright

Pounding, shaping, heat and repeat

 Until new form and strength come neat

Once the shape appears to view

 Working on preciseness and details due

Every piece a unique work of art

 Formed and forged from hand and heart

Written by Lorinda Peel-Wickstrom, my wife, who wrote it for my birthday.

One Blade Becomes Two

Sister Blades

Working on some new tool designs, I took an old lawn mower blade and recycled it to use as stock for a kusakezuri (Japanese hand hoe) and a hori hori. In my continuing study of Japanese agricultural tools made with reclaimed steel, I’ve created these as prototypes. The fact that the two blades are sisters really speaks to me, and I plan to let whoever becomes the owner of these tools know it.

The kusakezuri blade, ferrule and handle unassembled. The blade needs hardening at this point.

The hori hori blade with tape measure to capture the scale.

Heat Treatment Process

The hand hoe is ready for heat treatment. The process involves annealing (which I did already), then normalizing the blade for two or three cycles depending on if the blade warps as it cools. Finally, the blade will be hardened by quenching. For this particular steel from the reclaimed lawn mower blade, I took a piece of it and tested it. It hardened very well at a cherry red heat quenched in room temperature water. For longer pieces like a blade, however, quenching it in a medium like that could cause it to warp excessively or even crack from the stress of cooling so quickly.

I next tried hardening the test piece in warm vegetable oil (came out soft), and then cold vegetable oil. The second result had ok hardness (a file barely scratched it). I decided to quench the hori hori blade in the cold vegetable oil. This is the result:

A slight curve can be seen along the blade’s edge. This needs to be corrected.

The blade warped slightly, curving upwards, and the edges were a little soft for my liking, with the file biting a bit. The ideal is a file skating on the surface of the hardened steel. I’m going to harden the hori hori again, but this time using yaki-ire to harden the edges. I will use the same process for the hand hoe as well.

Yaki-ire is a style of edge hardening that is accomplished by applying a clay mask to all surfaces of the blade except for the edge. When the 1-2 mm clay layer is dry, the blade is heated to the correct temperature and then quenched in water. Water quenches faster than oil, so I believe this will give the hardness that I want while maintaining some toughness in the rest of the blade.

Blade Anatomy

A slight concave is forged into the back of the hoe blade to ease in sharpening.

Tang detail: note the sharp shoulder where the tang meets the ferrule.

The back side of a single bevel blade is called ura in Japanese, and in the picture above I forged a slight concave on the ura to make sharpening easier. This is a traditional method for forging single bevel blades. The blade will fit into a slot cut into a hardwood handle. An iron ferrule is used to support the tang and blade; for the support to work correctly the ferrule must fit snugly with both the tang and the wood. It takes a bit of work to ensure all the pieces fit properly.

Next update will show the completed pieces.