The Process
Riveted buckles
Each buckle starts with a length of 8mm round 304 stainless steel. Though stainless steels are more laborious to forge than mild steel, we opt to use stainless steel (when possible) for it's corrosion resistance.
The first step is to forge the round stock bar into the flatter, rectangular profile needed for the buckle type (most commonly 9*6mm), and to chamfer the corners.
Then the overall buckle shape is formed. This process entails heating the bar and - with a hammer - shaping it on the anvil or on one of our hand-forged buckle jigs.
If the buckle in production is one of our "full" buckles, composed of two half shapes and a heel bar, we will also need to forge "set downs" at the ends. On the full round buckles, these set downs have a rounded shape and shoulder, and on the full square buckles they have a square shape and straight shoulder.
At this stage I forge the "heel bar", which is the term we use for the length of bar at the rear (or the center for “full” buckles) of the buckle that the pin is wrapped around. The heel bar will typically be 4mm - 6mm round bar with either straight or rounded "set downs" at each end. These set downs will locate the heel bar to the ends of the buckle and accommodate the rivets.
Once we have the basic form of the components forged, it's time to drill the holes for the rivets. Once the holes have been drilled, I'll begin the first stage of filing to ensure that all of the components for the buckle fit together as accurately as possible. During this stage I'll file the components independently of each other, and will also file the buckle when attached together with bolts.
The next stage of filing is partly cosmetic, and will only ever be carried out on the inside of the buckle, when necessary. I tend to file the inside of the buckles as it will be in regular contact with our leather, and a finer filed finish will reduce the likelihood of the buckle marking or catching on the leather. If the buckle is so unsightly as to need filing on the outside, it will be discarded in favour of a buckle with a better forged finish.
At this point we have a fully forged and filed buckle and heel bar, attached to a heel bar with bolts. If the buckle is to have stainless steel rivets, it's at this point that - one by one - the bolts will be removed and a rivet* will be set in their place.
*Forging rivets
When required (or by request) I forge my own rivets to use in my belt buckles. To accomplish this I use an ingenious, but simple tool.
The main body of this tool is composed of two halves of spring steel, forged by power hammer and by hand from an old land rover leaf spring. Each half is a square length of bar measuring approximately 15*15*90mm. Both halves have two holes drilled into them, and one half has tapped holes, thus bolts can be used to attach the halves together. Prior to heat treatment of the tool, and with the two halves attached with the bolts, holes are drilled at different diameters (3mm, 4mm, 5mm, in this case) into the crack between the two halves.
To make rivets with this tool, short lengths of bar are placed into the holes with a measure protruding from the top of the tool. The exposed bar is then struck with a hammer to forge the head of the rivet. When the rivet is forged, the bolts from the side of the tool can be loosened and the two halves separated, thereby allowing the rivet to be easily removed from the tool.
With the buckle held together I can punch in the recess for the pin into the buckle. If this were to be done before the buckle is bolted or riveted together, the shape of the buckle would be deformed by this process.
Next I'll forge the pin, which begins with the same process as the buckle: by forging a length of round stainless steel bar (usually 6mm) into an approximately 7*4mm rectangular profile. A slight taper is then forged onto the end of this bar, which is then carefully scrolled around over the edge of the anvil to create a loop or "eye". Then to attach the pin to the heel bar on the buckle, I heat up the eye we've just formed and - using scroll tongs - open it before closing it around the heel bar.
The pin will usually take a little straightening and tidying up, then I'll use the rounded face on my hammer to impress a very slight bend or concavity into the pin. This is done for aesthetic appeal, but it also slightly improves how the leather sits on the buckle when worn. To finish the pin, I cut it to length and then dress the end to ensure a good fit into the recess in the buckle.
Any stainless steel components will then need cleaning with some serious chemicals. Then they'll be brushed with a stainless steel wire brush to improve their luster. It is only after this cleaning stage that copper rivets can be added.
Filed buckles
For a buckle with an integral heel bar like our "original double pin", the process differs slightly.
The first difference is that the forged bar is formed into a closed loop, as opposed to the more open shape of the riveted buckles. This loop is then welded shut primarily to increase the strength of the buckle, but also because a fully closed loop is more predictable to work than an unclosed loop (the material moves more uniformly).
Once we have our fully closed loop of flat forged bar in the shape of a buckle, the next step is to start forming the heel bar by removing a portion of surplus material at the rear of the buckle. This is done by first making two cuts into the rear of the buckle at the desired measurement (this will correlate with the width of the leather strap for the belt in question), and then using a chisel to cut between these lines, thereby allowing the material to be removed.
The final step in the formation of the integral heel bar is to painstakingly manually file the remaining steel at the rear of the buckle into a round profile so that the belt pin can turn freely when mounted. I will then file the inside of the buckle (never the outside), and the shoulders at the back of the heel bar to tidy everything up.
The recess for the pin, and the pin itself, are then added in much the same manner as with our riveted buckles, mentioned earlier on this page.
Leather
We buy our leather in full Bridle Butts from J & FJ Baker in Devon - the last remaining traditional Oak Bark tannery in Britain.
The first step is to cut a straight edge into the leather as close to the edge as possible, this will act as our "datum" for every strap that we cut from this hide, so it needs to be perfect.
Next we use our home-made strap cutter to cut as many straps as we need, at whatever width we need.
Once we have our strap, we identify the end at which the leather is thickest (if there is an end that's visibly thicker), and cut the end of the belt to shape (typically just a straight edge for riveted belts, with different profiles for stitched belts). This end of the leather will accommodate the buckle and the belt loop. With our profiled end, we can punch the larger hole(s) that accommodate the pin on the buckle, followed by punching smaller holes for either rivets or stitching.
Then we'll cut the other end of the belt to length, and punch the holes to accommodate the pin at different sizes. At this point can move onto dressing the edges of the belt, which is the final step before attaching the buckle.
To dress the edges of the belt, we first use our edge bevelling tool to chamfer the entire length of the edges of the belt, top and bottom. After this stage the edge of the belt will have three approximately equal faces along its length. These three faces are then sanded extensively until the edges of the leather have a rounded profile. Next the edges are burnished using tokonole, and a small amount of beeswax is worked into the edge to provide some water resistance.
The final stage is to either rivet or saddle stitch the buckle and the belt loop to the strap.
Please note - J and FJ Baker finish all of their leather by hand, and there may still be a waxy white residue on the leather when you receive your belt. This is completely normal and you can either buff it off straight away, or it tends to come off with wear within a couple of weeks!
Riveting
These are the two methods we use to attach our hand forged buckles to the Oak Bark tanned leather straps.
For our riveted straps we use 8 guage (4mm) copper saddlers rivets, one of the oldest and strongest methods of fixing leather. We use two rivets either side of the belt loop to keep everything fixed securely. We tend to leave a hand hammered finish on our saddler’s rivets, but can use our hand-forged doming tool to provide a smoother finish if desired. Our riveted straps all have a hand-forged stainless steel belt loop as standard.
Saddle Stitching
Our stitched straps are stitched by hand using a traditional two needle saddle stitching technique. Saddle stitching by hand is much more time consuming than using a machine, but the end result is stronger. We use waxed linen thread as it’s strong, durable and resistant to moisture. It also looks and feels nicer than synthetic thread, in our opinion.
The stitching chisels we use are our own design and forged completely by hand from salvaged automotive tool steel (it was an old car suspension spring).