Make a Knife Groove Tool! - Katana Bo-Hi Polisher

Тәжірибелік нұсқаулар және стиль

Japanese swords often have a groove known as a bo-hi carved into them. In this video, swordsmith Walter Sorrells shows the making of a tool used to polish these grooves. The tool can also be used for making grooves in Western style swords and modern knives.
Bo-hi Scraper Video: • Tools of Japanese Swor...
More at:
Sword making videos: www.waltersorrellsblades.com
Tactix Armory: www.tactixarmory.com
Walter's Instagram: walterstactix
Tactix Armory Instagram: tactixarmory
Twitter: @WalterSorrells
Facebook: / waltersorrellsblades
Patreon: / waltersorrells

Пікірлер: 52

  • @TyrellKnifeworks
    @TyrellKnifeworks4 жыл бұрын

    That tip to put the tap handle into the drill press to keep it lined up is pure gold!

  • @kevspss
    @kevspss4 жыл бұрын

    Groovy man

  • @joedees8783
    @joedees87834 жыл бұрын

    Watched the old video! Definite improvement on today's cuts! Thanks for the wealth of knowledge you've given and continue to give this community!

  • @thomasarussellsr
    @thomasarussellsr4 жыл бұрын

    Great tool idea to jump off from. Maybe forge out some spring clips for the side pieces instead of rubber bands? Sliding dovetail for the bottom sanding form instead of screws, so smooth and even all of the way instead of spaces left under the sand paper at the screws? Love the various sizes idea, could be useful to adapt as needed for woodworking and refinishing antique furniture too. Thanks for sharing this with us.

  • @gushlergushler
    @gushlergushler4 жыл бұрын

    Love the emphasis on japanese style blades lately, love it!

  • @davemccracken6436
    @davemccracken64364 жыл бұрын

    Haven't seen your work for awhile, and this morning here you are! This is a cool idea that looks like something I can use in woodworking! As usual, I enjoyed your humor and your presentation. Funny, I don't have 3 hands either! Doesn't do much good for me to complain about it! But it is reality, and working alone it often comes up. Enjoyed.

  • @jenky1044
    @jenky10444 жыл бұрын

    Nicely done. I've always liked homemade tools.

  • @Smallathe
    @Smallathe4 жыл бұрын

    Fascinating! Thanks for sharing.

  • @willykanos1044
    @willykanos10444 жыл бұрын

    I think I would adhere a layer of sheet rubber or gasket material to the top surface of the off-hand rest. Just to make sure your hand doesn't slip off.

  • @wandervanhoucke4331
    @wandervanhoucke43314 жыл бұрын

    Thank you for another video walter.

  • @mrstephenporter
    @mrstephenporter4 жыл бұрын

    Looking forward to next one. Great vid

  • @trabantdelux
    @trabantdelux4 жыл бұрын

    Just an idea... Instead of semi-round clampy-thingies you can try with pipes of the same material and bungee cord that goes trough them.

  • @valinn13

    @valinn13

    Ай бұрын

    I had the exact same idea. Just drill out the poly rods and run some elastic cord through them and tie it off. Then it doesn't matter if the clamping rods rotate as you move the sandpaper.

  • @hassanal-mosawi6049
    @hassanal-mosawi60494 жыл бұрын

    Thanks for showing how and sharing that

  • @jonadams4062
    @jonadams40624 жыл бұрын

    I was just puzzling over how to do this the other night. Thanks, Mr. Sorrells

  • @backyardtinkerer4951
    @backyardtinkerer49514 жыл бұрын

    The description of hand sanding reminded me of polishing brass at recruit training lol

  • @dr.froghopper6711

    @dr.froghopper6711

    Жыл бұрын

    Without Brasso too, lol!

  • @censusgary
    @censusgary4 жыл бұрын

    I think I could make one of these. I don’t have any of those fancy machines, but I have a saw, a file, a hand drill, some sandpaper, a rubber band ...

  • @KowboyUSA
    @KowboyUSA4 жыл бұрын

    Been wondering how to approach putting a fuller in my Bowie. Sweet.

  • @dr.froghopper6711
    @dr.froghopper6711 Жыл бұрын

    I’m very late to the game. My sons want to build knives. I’m more into jewelry and small sculptures. In jewelry, you make a lot of your own tools because commercial tools are very expensive and those one-off wonders can cost! So making your own tools, customized tools makes real sense. I’ve discovered that I enjoy making the tools as much as making the jewelry, lol. It engages my aging brain and should be beneficial for my sons. One is 39, the other 42. One is disabled and can’t do heavy manual labor anymore. The other is a talented graphic designer whose boss wrecked the company during COVID-19. His job evaporated. But they’re into making blades and I have a tiny shop that we can work from. I inherited my grandfather’s anvil and small forge. I can help update the tool selection to better quality tools. I need them for my sculpture work. I’m disabled and retired and bored to pieces. I look forward to watching all of us better our skills!

  • @Lachrandir
    @Lachrandir4 жыл бұрын

    European blades only very rarely had forged in fullers. The blade profiles and fillers were often scraped in. This can be seen in period artwork

  • @homemadetools
    @homemadetools4 жыл бұрын

    Interesting; haven't seen one of these tools before.

  • @draven3838
    @draven38384 жыл бұрын

    Great tool

  • @mikewilson8265
    @mikewilson82654 жыл бұрын

    Great idea and a good looking tool. I would try rubber O rings instead of rubber bands. I have used them and neoprene O rings with a lot of success in similar circumstances. Thank you for your always interesting presentations.

  • @HickokForge
    @HickokForge3 жыл бұрын

    I'm curious how well it has worked for you in the past year? Was making it worth it?

  • @soggybottomboys2792
    @soggybottomboys27924 жыл бұрын

    If i wanted to make a knife that would come in contact with metal alot what metal would i use so the metal wouldn’t dull when i cut metal with it?

  • @MathMikeAllen
    @MathMikeAllen4 жыл бұрын

    Besides files and small contact wheels on a belt sander, any tips for creating serrations? Ive messed around with veff type serrations as i find theyre easier to add.

  • @shanek6582
    @shanek65824 жыл бұрын

    Would different grits of lapping compound and a steel rod sand a fuller easier than sandpaper? Im assuming it must not work or you’d be doing it already but seems plausible.

  • @timhorton555
    @timhorton5552 жыл бұрын

    Can you show us how to make a fuller scraper?

  • @jawadibrahim2367
    @jawadibrahim23674 жыл бұрын

    Hey, can you tell me what make is the lathe?

  • @Dylanschillin
    @Dylanschillin4 жыл бұрын

    You ever make oroshigane? You kinda inspired me to make some from your tamahagane video, and i honestly can't fucking stop making this stuff. I wanna know if you've experienced with it and what you're thoughts are

  • @xj9779
    @xj97794 жыл бұрын

    Great idea... Hmm that clamping rods should have a bit longer and groves on both sides and two rubber bands clamping it to the aluminum block. So you just need to pull the used sandpaper bit for bit trough.

  • @barthanes1
    @barthanes14 жыл бұрын

    Make the sandpaper keeper dowels stick out of the end of a small clamp like this ( >= ). That way you can clamp it on the tool from the front without fiddling so much.

  • @turtlehitman
    @turtlehitman4 жыл бұрын

    Do you cut your bo hi before or after heat treat?

  • @stephenranti173
    @stephenranti1734 жыл бұрын

    Walter why not use o rings in place of the rubber bands??

  • @TrojanHorse1959
    @TrojanHorse19594 жыл бұрын

    Great video and tool idea, thank you! P.S. Just curious, why didn't you mill out the groove on your mill?

  • @gwcstudio
    @gwcstudio4 жыл бұрын

    Why not use diamond abrasive? Chop saw up round files in various grits. That's how I shape hard to reach curves.

  • @vdub5818
    @vdub58184 жыл бұрын

    I have a spring loaded tap guide that centers onto a tap wrench like you used the tap at 6:30. Keeps it perfectly centered and gives it the pressure needed to drive the tap forward. Literally worth it's weight in gold when tapping mokuti or titanium bolsters for hidden hardware with 2-56's.

  • @android01978
    @android019784 жыл бұрын

    Wouldn’t it be easier to control if the handle was perpendicular to the direction of the fuller? Imagine a d-shaped bracket holding the handle similar to spades have.

  • @mikewhisky9605
    @mikewhisky96054 жыл бұрын

    I am dying to hear Walter sing the song “Mr. Bojangles “

  • @lsubslimed

    @lsubslimed

    4 жыл бұрын

    😅👌

  • @siraig
    @siraig4 жыл бұрын

    That tap was about as crooked as possible without breaking 😂

  • @skeets6060
    @skeets60604 жыл бұрын

    I would have broken that tape before I got 3 threads in it with a drill

  • @gushlergushler

    @gushlergushler

    4 жыл бұрын

    Same here...

  • @leighchristopherson2455
    @leighchristopherson24552 жыл бұрын

    Your "three hand" tapping technique can be easily avoided. Just put the tap into the chuck, but don't tighten it too much, this will allow it to spin when it bottoms out. The tap body is hard enough that it isn't damaged, and smooth enough that the chuck jaws are not damaged. Put the mill in a low r.p.m. and you can power tap. Much easier than growing an extra arm.

  • @censusgary
    @censusgary4 жыл бұрын

    “The bo hi is originally cut out with a scraping tool, or scraped out with a cutting tool.” Well, which is it? 😜

  • @JohnJohnson-sr6zt
    @JohnJohnson-sr6zt4 жыл бұрын

    FYI, if you are drilling and tapping aluminum CRISCO is your friend. White in the can.

  • @24kMrGold
    @24kMrGold4 жыл бұрын

    1

  • @kinnikuzero
    @kinnikuzero4 жыл бұрын

    0:30 "In Japanese it's known as a he or a hoe he". Man I can't stop laughing lol

  • @draganperovic6269
    @draganperovic62694 жыл бұрын

    Making Grove in the tool with mill to making Grove in the knife "really"

  • @darksentinel9304
    @darksentinel93044 жыл бұрын

    Congrats you just gave a chinese company a new design to steal. But really nice design none the less

Келесі