Tag Archives: Ceramic

Spyderco Roadie XL C267BK – Part II – Shattered Tip.

M398 is a fragile steel compared to M390. The encounter of the tip of the Roadie XL with a tile of my kitchen has been definitive. One mm has been shattered and now I got a micro flat screwdriver as a tip.
OK. Diamonds are steels best friend.
I’m able to form a new tip in a diamond shape.

For now I won’t baby that Roadie XL anymore. I decide to thin the edge.

The best way is to protect the blade to avoid any big scratches.

Then it is time to play with industrial diamonds.

I will also use some diamond rod to round the jimping.

Of course I’m enough clumsy to scratch the blade twice and I’m obliged to use some diamond paste to treat the surface.

Then some polishing paste on the leather to slowly makes it like a mirror.

I’m quite happy with the result.

Time to test this new geometry. The edge has been convexed and thinned it should cut much better.

One of the most difficult task is to cut in two the butt of a two liters plastic bottle. This is a test my Scandi blades fail all the time. Any Opinel is king in that. Or the Manly Wasp ! My favorite being the Nilakka.

As a whittler it goes deep in wood.

As a steak knife, the shape of the blade brings only the new tip in contact with the ceramic of the plate.

That new tip is strong enough to be able to pierce a metal lid of a green bean jar. A hole pierce help the release of the lid on some jar.
No damage no more.
Now the Roadie XL cuts much butter.

The Spyderco PPT Round 2 — The Son of Anarchy.

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Strangely I am coming back often to the PPT when I first thought it would be a collection and a safe queen. Safe queen my a$$ ! Pardon my French but there is something quite sensual when holding this knife, something which makes the other feel “hollow” in comparaison. The PPT got that heavy butt “anchoring” it to the palm but also the toxicated finish of the handle’s slab is a delight under the thumb.
There is something almost “paleo” in the finish. Something primal in the mechanical way it feels. It’s dense but is designed to be heavy metal. It’s a knife Opie could have admire…

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On the performance side, I have decided to get a convexed edge. Diamonds are the only language stubborn S90V seems to understand and scratches on the blade side are, well especially for the clumsy sharpener, something hard to avoid especially when using the stone at a 10° angle to get rid of that secondary bevel. The performance in pushcutting are really enhanced now. I can measure it to the Manly Peak and its thin S90V blade.

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I use white ceramic to make the steel shiny but S90V is really a tough cookie in the kindergarden of alloys: it’s a game of patience to obtain a nice finish.

But now on plastic I can enjoy the enhancement of that already very thin edge. It goes easy through.

Someone asked me why using a workhorse knife on tomatoes ? Tomatoes may look like some fragile fruits but they are not: their skin got no pity for any dull knife and their flesh will give in under any pressure. The best tools for tomatoes are serrated and micro serrated knives.

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Hence that test on my polished edges. You need a very keen blade to push cut in a tomato and make thin loaves. Plastic and bambou can be used to test the edge stability which often is only due to thermic treatment of steel.

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The alignement of the point on the PPT is very different from my Millie and is very close to the experience of the YO2: its makes powerful cuts.
Also the handle makes Icepick/reverse grip very confortable, knowing this is the favorite grip of Philippe Perroti on La Griffe, a grip I have found handy in forcing a door. Just kidding but the confortable reverse grip (à la “griffe de chat” in French) is not a joke.

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You get also an excellent blade/handle ratio for a choiled knife compared to my Para3 for example.

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And as good as the non-choiled Sliverax !!

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My PPT has been used in the kitchen is not easy to clean because the way the hole in the liners are not accessible. This is serious issue if, for example, a piece of raw meat get stuck there and could contaminated the blade. The full Reeve Integral Locks are the best lock for checking your folding for any debris. I would have preferred solid titanium liners without that hidden cheese holes which ask for special maintenance starting by unscrewing the slabs to get full access and complete cleaning.

So in a wrap, the PPT is a compact hard user with very high performances featured by great ergos. It has a really strong character (it feels like it has been done for some Hell’s Angel fan) but once deployed it will pierce and cut with high reliability. Once the PPT is entering the game: this is serious business. For the record being represented to bikers gathering, bikers love La Griffe and various neckknife which are handy on a ride. So it’s easy to understand some DNA in the PPT design.

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