Hidden Tang Kitchen Knife Handle

Joined
Jun 2, 2006
Messages
422
I don't think I've ever grown the courage to show a WIP here, and not that this is anything glorious.....but for the fun of it:

This is a style of knife I've never gotten to do before. I would like to thank another BF member for letting me buy an integral bolster blank from him. Here is where the blank started:

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He was gracious enough to oblige my request. :) I asked for it to be left as rough as possible so I felt like I did as much as I could on my own....I just simply don't have the means to forge.

Any way, this is about the handle construction...hope you enjoy. :)

And do keep in mind this was written for a kitchen knife forum and not a knife makers forum.

Here is where we started the night:

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I've epoxied on the black spacer I decided to use. This is going to be a hidden tang handle with three Corby bolts holding everything together. I decided against a mosaic pin because the tang was only so wide and putting a mosaic pin in required too large of a hole in the tang for me to feel comfortable.

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In order to get a good, tight fit, I measured the thickness of the tang with calipers and then set the scales in the mill with the tang outline drawn. The mill is set to cut half the thickness of the tang into each scale. Gotta love a digital readout mill. :) I went something like 0.005" deeper than perfect to allow space between the tang and the scales for epoxy. You'll notice the tang slot is too long for the tang....because I decided to use that spacer after I cut the tang slot. :o

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Next, we make sure the fitment between the two scales is tight. Sanded and flattened with 150 grit on a granite reference block. They're flat now.

A better glue joint would be created with a rougher surface, but I wanted a tighter looking joint and with all the epoxy and three bolts, the handle is bomb proof enough.

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Test fit to make sure the joints are all okay.

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With some strategically placed clamps I drill the shaft holes for the Corby bolts

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This side is done.

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All three of the shaft holes drilled. Now time to make the shoulder cut.

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I use a reamer made by the same guy that makes my Corby bolts....this assures a tight fit since he makes both.

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These were not done in this picture, I needed to go deeper, but it shows what we end up with. The bolts shoulder rests on that wood and pulls the two scales together.

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Test fit....everything looks great.

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While the scales are not epoxied (just bolted) together, I use a 36 grit belt to remove some of the excess material. Basically just less work to do later....but with both scales even all around, it's easier to wipe off excess epoxy as it's squeezed out too.

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All tightened up, epoxied, and set to dry overnight.

I thought I got a picture of the drawing on both scales. I trace an outline of the tang on both scales.....make sure when I'm shaping it later that I don't over do it. Safety first....it's the simple, 3 minute tasks that can save you hours later.

More tonight....hopefully my wife lets me in the shop again. :)
 
looks good Adam, that is almost the same thing I do. Nice gyoto shape. who did the forging if I may ask? looks familiar just want to know if I am correct.
 
Looking good, very similar to my process for a mortised handle on an integral chef as well. Real nice burl on that!
 
Ummm, errr....it should be Salem. I read one of your threads about five times as I was making that knife. :o

I love that wood....it's black ash burl. One of my favorites.
 
That's looking great Adam! :thumbup: :cool:

Whoever forged that left a lot of stock for you to grind off. :eek: ;) LOL
 
Wow, thanks for the WIP. I have just been considering doing something similar (hidden tang chefs knife) so this is very timely. Thanks again!
 
Thanks Nick!!

Whoever forged that left a lot of stock for you to grind off. :eek: ;) LOL

Umm, yeah he did. :) But it was perfect....just what I wanted. A little lighter wouldn't have hurt....but nothing a 36 grit belt won't take care of.

BTW, what ever happened to that damascus kitchen knife you started? I never saw it's completion?!?!
 
Okay good. :)

I had to throw a jab at myself here because I know the forged blank looks pretty beefy... but Adam and I discussed it and I didn't want to send him a blade forged right down to the nitty gritty because IMHO it would be a little overwhelming for somebody that hasn't ground a forged blade before. It also left him with some meat there, so he could tweak things if he wanted/needed to.

I'm really excited to see this one all finished out Adam. :)

Oh, and my kitchen knife got put on the back burner for orders. But I am determined to finish it before 2026. ;) LMAO :D
 
Thanks everyone. :)

Very nice! Where do you get your corbys and reamer, I'm curious?

Pops....great source.

Okay good. :)

I had to throw a jab at myself here because I know the forged blank looks pretty beefy... but Adam and I discussed it and I didn't want to send him a blade forged right down to the nitty gritty because IMHO it would be a little overwhelming for somebody that hasn't ground a forged blade before. It also left him with some meat there, so he could tweak things if he wanted/needed to.

I'm really excited to see this one all finished out Adam. :)

Oh, and my kitchen knife got put on the back burner for orders. But I am determined to finish it before 2026. ;) LMAO :D

It was still intimidating. I reckon anything you've not done before is though. Been a fun project.

2026???? No way!!! :)
 
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So it's had a night to cure....clamp removed and unstuck from the paper towel.

Time to draw an outline of what shape handle I'm going for.

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Now we grind the bolts down smooth with the handle material. Slow process since you can't overheat them at this point. A 40 grit ceramic belt makes it go kind of quickly though.

With the scales flat, I use a disc sander to square everything up and get to a good, square starting point.

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After the disc sander.

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I use a Sharpie to mark where I want the front bevel to start. Makes sure both sides are even.

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Almost there with the front bevel.

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And FREAKING dinner was ready!! "I don't want to eat mommy....I want to keep playing!!"

This is where I quite for the night....almost there, probably turn to hand sanding tonight.

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A close-up of the bolster area.....the front "bevel" of the handle is flat from the back of the first pin to the front of the bolster. Now it's time to round everything and make everything comfortable.
 
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