Knife Making: Stainless Kiritsuke きりつけぼうちょう DIY

Описание: Kiritsuke, a traditional japanese multipurpose chef's knife. This is my interpretation with western style handle construction and double grind.

𝐌𝐚𝐭𝐞𝐫𝐢𝐚𝐥
Steel: 3mm thick MA5MV (aka 420C, W1.4116, X50CrMoV15).
Wood: Ebony and unknown hardwood (probably some kind of hard oak) both well aged by a luthier.
Blue vulcanized fiber liners, same as G10 or micarta spacers.
Pins: 8mm brass tubing; 6mm brass and copper mosaic; 4mm solid brass round stock.

𝐏𝐫𝐨𝐜𝐞𝐬𝐬
0:05 3D printed pattern I made in cad
0:20 Profiling with metal cutting bandsaw
0:50 Refining profile with 2x72 belt grinder
1:20 Drilling pin holes
1:50 Grinding main bevels
2:30 Pre heat treatment hand finish up to 320 grit
2:40 Packing with steel foil to prevent decarburization
3:15 Hardening: heating to 1050°C and soaking for 15min
3:25 Plate quenching with forced air
3:50 Tempering at 230°C for 2.5hr
4:00 Cleaning scales
4:40 Hand finish up to 1200 grit sandpaper
4:50 Polishing with cotton wheel and fine polishing compound
5:30 Preparing woods with a 15° angle
6:00 Scales assembly with epoxy glue
7:00 Match drilling scales for pins
7:30 Profiling scales (had to scrap 2 set due to woodworm holes)
8:15 Finishing bolster area before glueup
9:00 Making custom mosaic pins
10:00 Glueup with epoxy. Bolster area cleaned with nitro solvent
10:45 Cut pins excess instead of grinding to prevent heat
11:00 Handle shaping with 2x72, files and sandpaper
11:50 White mineral oil
12:15 Stropping

𝐄𝐱𝐭𝐫𝐚
Pattern can be downloaded for free on my website (link below) and this knife is on sale there too.
Heat treating explained here:
   • Stainless Steel Heat Treatment: Oil vs. Pl...  
Made with this DIY oven:
   • DIY Heat Treatment Oven  
My beveling gij:
   • Bevel Grinding Jig Knife Making DIY  
Mosaic pins explained here:
   • Experimenting With Mosaic Pins  
Special swiveling vise made here:
   • DIY Knife Making Vise  

Thank you all for watching!

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