Forged Japanese Dog Head Hammer

Making a Japanese style hammer by hand. First time I make an hammer or puch a hole this big, my new forging hammer it’s made!

Big thanks to Nerd Inventor for providing suitable c40 (1040) steel for this project, check his videos here:
Also thanks to my dear friends Dotti and Edo for helping to punch this hole!

Index of operation and materials:
0:15 Cut a jack hammer bit in two to forge into punch and drift
0:52 Both pieces are forged round and squished into ovals. The shorter piece (punch) is also forged to a point.
2:50 Grind and shape both tools with angle grinder and 2×72 belt grinder
3:53 Heat treatment, heat to 825°C, quench in 70°C oil and temper to 230°C for 2hrs
4:40 A wrench is used as handle for the punch
5:11 c40 steel round stock is cut to size
5:37 a rebar piece is welded as handle
6:12 Forge semi-square
6:37 Mark hole position
7:00 Punch the hole
7:45 Drift to size
8:00 Complete forging process by rounding edges and squaring everything up
8:30 Annehaling with coke forge: heat to critical and let cool slowly with the forge
8:56 Grind faces of the hammer heat with belt grinder
9:40 Harden: heat to 850°C and quench in water
9:57 Remove scales with bench grinder and steel wire wheel
10:08 Buff faces with fine polishing compound and cotton wheel
10:22 Tempering with hot drift
11:18 Cut wood for handle (random cutting board leftover wood)
11:25 Mark eye shape
11:35 Shape with homemade finger plane
12:04 Cut slot for wood wedge
12:25 Insert wedge with boiled linseed oil (also applied to handle as finish off camera)
12:40 Also a small steel wedge is used in the opposite direction

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Thanks a lot for watching, I hope you liked the video!
Suggestions and comments are welcome.
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  1. If you want to know more about any particular process shown in this video be sure to check description, I always write detailed list of operations and products used.

    And if you like what I do consider supporting me so I can keep on making, join as channel member or check my Patreon for early access and voice-over edit of my videos. Thank you!

  2. you think you could make the things that go onto to backpacks? you know how theyre plastic right, they break… see where im going here?

  3. Top esse tem o dom

  4. Really sad to see no forearm hair get cut off!

  5. What a stunning and beautiful tool. Amazing job and thanks so much for posting

  6. wait a sec… you said: siii cel'abbiamo fatta! O-O ma siete italiani allora? sarebbe magnifico 😀

  7. travaille bien mais frappe un peut lente

  8. 👍👍👍👍👍👍👍👍👍👍♥️

  9. Did anyone else notice that the oil quantity rose when he preheated it?

  10. Anyone else watching the anvil skip across the room in hyperlapse. 😄

  11. i used the hammer to make the hammer

  12. You must like hammering cold steel or you just want the work out

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