
One of the knives I was really taken with at this year's Blade Show was the CRKT (Columbia River Knife and Tool) Ken Onion designed Eros.
The Eros is according to Ken a gentleman's tactical knife (aka "Genticals" - watch the spelling!)
- he said years ago all gentlemen carried knives so that they could sharpen their writing instrument - the quill.
My understanding is that's where the name penknife comes from.
The CRKT Eros has titanium handles, is a frame-lock and a flipper.
Size comparison -


Compared to more traditional penknife and gentleman's knife:

The most impressive thing about the CRKT Ken Onion Eros (and Ripple) is the flipper - it is smooth and positive almost no chance of not flipping them open fully - with only finger pressure and almost no perceptible wrist movement.
The reason why the flipper is so good and smooth is a circle of ball bearings on both sides of the blade to reduce friction.
The system used is the IKBS ball bearing system -

The ball bearings are loose in the circular groove - but I have been told are held pretty well in place by the grease used, suggest that care still needs to be taken in any disassembly.
The IKBS distributes an even tension/pressure over a wide area around the pivot, and I believe is the reason why my samples of the Eros and Ripple 2 have blades that are very well centered in the handles.

Even though the flipper is easy and smooth I found I was wearing a dent in my finger tip from playing/opening the knife.
The flipper is pointy - and I learnt that it's better to try to lay the finger tip along the grooves/ribs rather than on the tip of the flipper, then pull back as if rubbing across the ribs - but either way - on the tip or laying across the grooves/ribs the blade opens positively.

The blade is of Japanese Acuto+ steel - which Ken has said is modified 440C - according to the CRKT page:
ACUTO + HRC=59-60 C=0.90-0.95 CR=17-18 MN=0.50 MO=1.30 to 1.50 NI=-- PH =0.04 SI=0.50 V=.10 to .25 CO=--
440C has been a long time "premium" steel - at one time very much favored by custom knifemakers because it can be polished to a very high quality mirror finish - it is also very stain-resistant.
One of my favorite steels is BDS (Boye Dendritic Steel) used by legendary knife maker David Boye author of the classic book "Step by Step Knife Making" - BDS is basically cast 440C.
The blade stock is quite thin -

resulting in thin blades - which enhances the cutting (through) ability as thinner blades means lower resistance.
According to my electronic calipers at the thickest part it is 0.0875" (or 2.22mm).
Compared to the Victorinox Bantam Alox - 0.0795" at the tang, all steel Leek - 0.0885", JYD - 0.121"
Because of the thin blade stock and the very good grind including the distal taper - this knife is one of the sharpest knives I have had the pleasure to get from a factory - the edge is acute and very well finished/polished.
It rivals my long time "cutting-est" knife - the Boye BDS Eagle Wing folder -

The Eros blade is very pointy - so I would avoid prying (a real no-no) or heavy twisting of the blade - otherwise one may snap the pointy tip - it is afterall supposed to be a gentleman's knife - but I can see it as much more than that....
The Eros has titanium scales along with the thin and slim blade it is pretty light -
weighing at 1.54oz
compared to the all steel Leek @ 3.05oz, JYD @ 3.77oz and even the CRKT Ripple 2 (smaller but with all steel scales) @ 2.24oz
So it is noticeably lighter than the other knives shown -
but in turn heavier than both the Victorinoxes - Bantam Alox @ 1.03oz and Popular @ 0.76oz.
The Eros is a frame-lock - one of the most secure, strong and reliable lock types -

The lock is almost ideally set and positioned on the blade tang -
I am very impressed with, not only the materials used, but the build quality of this knife.
After handling and trying it out for a few days - the CRKT Ken Onion Eros has become my at home EDC - I don't think I can give it a better testimonial than that.
--
Vincent
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