Knife making - The infantry combat knife

Making a Infantry Combat knife, N690 steel, 61HRC

Thank you for joining me on my channel. Today, we will be making a infantry combat knife. Also known as a kabar knife. Such a knife was used by the US Marine Corps (USMC) during World War II. I made my blade from stainless steel called N690.
The carried out hardness test showed 61HRC.
The handle is made from stacked leather pieces that have been glued together. The end plate is also glued on and mechanically secured with a pin.
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Technical data:
Material name: N690
Alloy: X105CrCoMo18-2
Total length: 330 mm
Handle length: 135 mm
Blade length: 195 mm
Blade thickness: 5 mm
Weight: 417 g
Handle: 32 pieces of leather cuts stacked and glued
Leather: 3.5 mm thick
Hardness: 61HRC
Steel: Corrosion-resistant, martensitic chromium steel with high carbon content, cobalt, molybdenum and vanadium additives

video chapter:
00:00 - Intro
00:36 - Knife details
01:12 - Knife outline
03:19 - Marking the centerline
04:07 - Plunge line
04:44 - Bevel
06:49 - Fuller
08:49 - Handle guard
13:44 - Endplate
17:24 - Heat treatment
19:37 - Leather cuts
22:59 - Gluing the stacked leather handle
28:08 - Grinding the leather handle
29:55 - Impregnating the leather
30:40 - Sharpening
31:27 - First cut
32:26 - Outro


In this video I used the music and clips listed below. Many thanks to their creators.

Music:
Dangerous - Kevin MacLeod
Impact Intermezzo - Kevin MacLeod
The Battle of 1066 - Patrick Patrikios
Fire Breather - Silent Partner
Tied Up - Silent Partner
Galactic Damages - Jingle Punks
The Awakening - Patrick Patrikios
Sun Spots - Silent Partner
Get Tough - TrackTribe
Icelandic Arpeggios - DivKid
Motocross - Topher Mohr and Alex Elena
Riffs For Days - TrackTribe

Clips:
Endcard: youtube-25102 - StreamRender
button-subscribe-112699 - YRDesigns
subscribe_-_50759 - Mohamed_hassan
Smoke 3068-165796695 - Timo Herbert from Pixabay

Sound Effects:
impact-6291 - freesound_community from Pixabay
sword-thud-47635 - freesound_community from Pixabay

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Always wear the appropriate safety clothing and follow the instructions for the respective machines.
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Attempting to emulate any of the actions or projects put forth by this channel should not be done without training and even then, at your own risk.