Titanium diving knife blanks

The ubiquitous ti "diving knives" are made in China, so you would have to search those avenues to find blanks. They are not very good knives at all imo. Titanium alloy blades with a tungsten carbide edge like CMs knife above are much better.
 
I don't think there are any to be had. I usually just buy a bar of Ti and cut a knife from it.

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That looks sweet, those "rainbow knives" usually look really tacky, but that...hmmm.
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Similiar. Oxygen let into the coating process gave these a cool color.

 
I don't know about dive knives... but daggers used to brain fish for spearfishing are found in Scubastore. They sell the blade (full tang, mind you) so you can slap some scales on it and create your own knife.

I wouldn't want to use that for DIVING, but sure I would use it for spearfishing!
 
Spyderco Aqua Salt, totally rust proof.

OP is asking for blanks. He could always buy a full knife such as the Aqua Salt, tear it appart by breaking the handle, and then rehandle it as he see fit.

HOWEVER that seems like a waste of a perfectly good knife IMHO!!!
 
You'll find that Ti thrashes abrasives at approx 3X the rate of steel.
 
And you will also find that unless special grades of titanium alloys are used, those knives will not hold an edge at all.... In my opinion!
 
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