Unnecessary Wrench-Knife | Cocktail Tool

Unnecessary Wrench-Knife | Cocktail Tool

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Black Beard Projects
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Published on ● Video Link: https://www.youtube.com/watch?v=9GpAawjbaFo


Duration: 13:08
198,276 views
6,638

What you get when forge welding half wrench with a piece of 1070 high carbon steel? A wrench knife!
Totally unnecessary, very weird and funny looking! I bought the wrench for 1€ at a local flea market, un-branded old tool, probably drop forged out of some kind of high carbon steel, forge welded very well over a 3mm thick and 50mm wide 1070 (aka c70) high carbon steel flat bar.
The blade is differentially heat treated with edge hardness between 60 and 65 Rockwell.

Some of the videos about the tools I used:
My hammer: https://youtu.be/2jJOAP3x9es
Big Vise: https://youtu.be/rwGlBH7YJPg
Hardening oven: https://youtu.be/5MNwqwmrWgQ
Tempering oven: https://youtu.be/uILynSeLuzU
Grinder - Buffer: https://youtu.be/8V9f0DIkb90

I just started to list some of the stuff I use for my projects in this amazon storefront:
https://www.amazon.com/shop/blackbeardprojects
It's affiliate marketing, so if you order something from here you'll help the channel for free! Thank you!

Index of operation and materials:
0:32 Coke Forge
1:30 Tried to chisel the slot but it's too hard for me to get it straight
2:00 Much easier to cut with metal cutting band saw
2:30 1070 high carbon steel (c70)
3:20 Steel wire used instead of welds to hold two parts
3:54 Borax used as flux to help with forge welding
4:50 2x72 belt grinder to profile the blade and grind bevels
5:50 Inside radius refined with die grinder and stone grinding bits
6:40 Wire wrap to help clay stick
6:52 Muffler sealant used as clay for differential heat treatment
7:35 Hardening: heat to 820°c and hold for 5 min
7:45 Quench in warm 70°c oil
8:14 Cleaned up with steel wire wheel on bench grinder
8:30 Tempered for 2hrs at 200°c
9:15 Hand sand to 220grit sandpaper
9:50 Etch in ferric chloride to reveal hamon line
10:00 Clean with fine steel whool
10:30 Final edge on slack part of belt grinder with fine belt
10:52 Strop on leather with fine polishing compound

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Tags:
wrench knife
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knifemaking
knife making
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blacksmith
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blacksmithing
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