Making Hammers From a Railroad Spike




About: I'm not an expert in anything. I just enjoy making things sometimes for the process sometimes for the end product.

I was recently inspired by Uri Tuchman's YouTube channel. He does some amazing engraving and all around great builds if you don't know who he is I highly suggest checking out his channel. The first video of his I watched he made a hammer. It sparked my curiosity and I wondered if I could make one. I was looking around my garage for scrap pieces of metal but I came up empty handed that is until I remembered I had two rust encrusted railroad spikes that I've had for about 15 years. The story of how I got these is fairly entertaining but way too long to write about here.
Anyhow I thought the shape of the head of the spike, with a little shaping would work as a hammer head. Originally I was just going to make one hammer but since the railroad spike was long enough I was able to make two small hammer heads. The steel is fairly soft and scratches easily which leads me to believe it will get beat up fairly quickly. I plan to use these for light hammering and possibly for engraving so I did not try to heat treat them. I am curious to see how long they will last with out being hardened.

Build Video:

Teacher Notes

Teachers! Did you use this instructable in your classroom?
Add a Teacher Note to share how you incorporated it into your lesson.

Step 1:

The first thing I did was try and remove as much of the rust as possible. I used an angle grinder with a grinding wheel attachment. I chucked the railroad spike in my vice and got to work trying to evenly grind away the rust.

Step 2:

This is the railroad spike after grinding. Next it was time to clean up the piece and start shaping the head of the rail road spike. This consisted of my flattening the domed head and straightening all the sides. I just bought this Multitool Grinder attachment and this was a good opportunity to test it out. It uses a 2x36 inch sanding belt and I have to say it worked quite well.

Step 3:

Here I am trying to mark the center of one of the sides to make the eye of the hammer, the part where the wood handle will attach. I am terrible at getting things centered, as can be seen once I drilled the hole. However since I was going to have to elongate the hole I knew it didn't have to be perfect as I could adjust the hole using files.

Step 4:

In order to drill the hole for the eye I first started with a small diameter drill bit and then worked my way up through larger drill bits. In total I used 4 different drill bits to get a final hole that was 5/16 of inch wide. This was the size I needed in order to fit my file through the hole for shaping. Its important when drilling a metal object like this to use a drill press vice to hold the piece this will help prevent injury.

Step 5:

With the hole drilled I began elongating the eye with a file. I didn't aim for a specific size I just went with what looked right. At this point I felt the hole was large enough but after attaching the handle, which you will see later, I felt like I should have made the eye larger. If the handle breaks I will take the opportunity to make the hole larger. Time will tell I suppose.

Step 6:

After shaping the eye I cut the railroad spike in half using my angle grinder fitted with a cut off wheel. I performed the same process for the other half of the spike off camera as its identical and would just be repetitive if I documented it here.

Step 7:

In this picture the hammer head is just sitting on top of what will be the wood handle. I was trying to see what looked right as far as scale and length of handle were concerned. Next I traced the eye hole on to the top of the wood and then marked the length of the hammer head on the side of the handle.

Step 8:

I started to carve the tenon portion that would be fitted in the eye of the hammer head. I started using a carving knife and then moved to a trim saw. I tried to cut away the excess wood with the trim saw so I would have less carving and chiseling to do. I used a chisel to clean up the tenon and saw marks.

Step 9:

I would periodically check the fit of the hammer head on the handle to make sure I wasn't removing too much material.

Step 10:

Once I got close I switched over to using a file to clean up any areas that needed a little adjustment.

Step 11:

After the tenon was done, I started to shape the handle. At first I used a wood rasp to get the rough shape I was after then I sanded the handle starting with 120 grit and finishing with 220 grit. The last picture shows the finished handle almost ready to be attached.

Step 12:

I drilled a small hole at the base of the tenon so that when the wedge is hammered in to the tenon it won't split, it acts as sort of a stress relief. After drilling the hole I cut the tenon in half this is for the small triangular wedge that will be hammered in place to secure the handle to the hammer head.

Step 13:

I mixed some 5 minute epoxy and spread some on all the mating pieces. In the third picture you can see the small maple wedge being inserted in to the middle of the tenon. Next I hammered the wedge in to the tenon. I also made sure to clean off any excess epoxy with acetone. I let the epoxy cure overnight.

This is actually the second handle I made for the hammer I split the first one because I was too aggressive when hammering in the wedge. And this is the third tenon I had to carve as the second one ended up being too small.

Step 14:

After letting the epoxy dry I took my trim saw and cut off the excess tenon and then sanded that flat. I wanted to maintain the feel of the wood so I applied four coats of Danish Tung oil to the handle per the instructions on the can.

Step 15:

This is my first time trying something like this and as always I made several mistakes and learned a lot along the way. To say that I am happy with how they turned out is an understatement. I suppose part of the reason I am so pleased with them is because of the story behind how I got the spikes. Every time I use one of these little hammers it will remind me of that story.

I plan to use these hammers for light work so I didn't hardened them with that said I am curious as to how much abuse they will be able to take.

Build Video:

Metalworking Contest

Participated in the
Metalworking Contest



    • Indoor Lighting Contest

      Indoor Lighting Contest
    • Metal Contest

      Metal Contest
    • Make It Fly Challenge

      Make It Fly Challenge

    16 Discussions


    11 months ago

    Railroad spikes are a soft metal and wouldn't make a very good hammer. Next time you are standing near some old railroad tracks I bet you will see the impacts from hammers used to drive them in the railroad tie.

    5 replies

    Reply 11 months ago

    I agree, but I wonder if it matters when making a tack hammer, which these are. I would expect the main use of these to be on brass tacks or small nails used in decorating. Otherwise, maybe he could Harden these with a torch. Any ideas?


    Reply 11 months ago

    Sorry but these aren't tack hammers. As I stated in the first step. "I plan to use these for light hammering and possibly for engraving so I did not try to heat treat them." I will be hammering on wooden handles in other words the hammer head will be striking the wood handle of the tool/chisel.


    Reply 10 months ago

    Oh great, that makes perfect sense why you wouldn't heat treat them. My tool box is much more limited so I haven't had the luxury of a hammer just for chiseling or engraving. Maybe it's time to make one! Thanks for your response.


    Reply 11 months ago

    While untempered spikes are somewhat soft, I don't think for light work you're going to see any appreciable damage to them. The author should get years of service out of them.


    Reply 11 months ago

    Yes, as I mentioned in the Instructable I could tell the metal was soft which made me curious as to how long they would last. These hammers are for engraving which doesn't require a heavy hand. I spent about an hour yesterday using them to carve out a logo and the hammer head held up just fine.


    10 months ago

    Nice instructable... excellent video presentation, and perfect upcycling

    1 reply

    Tip 11 months ago

    Nice instructable, but i saw 2 issues

    ptrobrn is right that the spikes are relatively softer, however this is a lighter hammer and is not likely going to be used where the metal will matter.
    In all a great hammer for its type of use.

    2nd and most important.
    You simply drilled out and made even sided hole for the handle.

    If you look at a regular hammer head carefully, the hole is made slightly wider at the top so when the wedge is place the wood expands and the handle cannot back out.

    This is for use and Safety.

    I don't take this lightly.

    When i was a kid a saw a hammer head fry off and hit a man in the face. The claws went thru the cheek and broke several teeth. If ever a hammer starts to loosen always check and tighten.

    Still all in all it's a great instructable.



    11 months ago

    I liked the tip about drilling the stress hole in the tenon - thank you! Voted.


    11 months ago

    Great instruction!

    It reminds me how we did hammers like this during school lessons about twenty years ago.. But the handle was made from steel bar and connected to the hammer using thread. I presented that one to my dad :)

    1 reply
    Kink Jarfold

    11 months ago on Step 15

    I hope to heck you signed and dated your fantastic hammers! This was a great instructable. KJ

    HIGH 10.jpgNailed It!.jpg
    1 reply