Sebbie vs shrink wrap

Sergeua said:
How thick behind the edge can this sebenza be? Why is that a factor? I can cut shrink wrap with kabar that's at 20 degrees and pretty sure it's thicker than sebenza. Your sebbie just got no bite. You just gotta push the knife through then
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Yes but you are a magician. The rest of us mortals are subject to the laws os physics.
Details matter.
Again I offer up my Manix at 30thou behind the edge. Sucked so bad compared to ANYTHING else I had that was more reasonably configurd.
 
Like sebenza it's hollow ground and one can sharpen it for a while and it doesn't get thicker. I think something else is at play here.
 
jasonbroni said:
Ok - so I get my small 21 sharp enough to shave (touch up) my cheeks at work (to maintain my awesome beard) lol and s-cut news print.
Subject change - my spyderco dice and para 3 are just as sharp, but... when the dice and para 3 simply touch, graze, or even look at shrink wrap - it cuts. The sebbie can lightly pass/graze the wrap and not cut?? What the hell? Is it the hollow grind vs the flat grind? My angles are roughly the same - dice and para at 17 dps and (maybe) the sebbie is at 17 or 18?
I don't get it?? (Although I'm guessing it's the flat grind?)
What do you guys think?
Thanks in advance.
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You have to rule out your sharpening, did you create a crisp Apex?

Also edge finish is another factor.

Lastly there is the stock thickness on all the blades and the thickness behind the edge.

You can 17dps all day but if you are working with .300 stock and a .050 behind the edge it doesn't matter if it's 17dps or hollow grind or any grind it's never going to cut like a thinner blade
 
Are you guys implying that his sebenza came out from the factory thicker than the rest? I don't get it. I don't got one yet but I'm sure it should be ok to cut shrink wrap.
OP you should have a nice sharp tip to pierce and start the cut whenever you feel like you need an edge and if the wrap is bunched up try cutting it with a bit of an angle not perpendicular. Don't make your edge too polished it will dull and give you soapy cuts.
 
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Sergeua said:
Are you guys implying that his sebenza came out from the factory thicker than the rest? I don't get it. I don't got one yet but I'm sure it should be ok to cut shrink wrap.
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No one said it wouldn't cut shrink wrap we are talking about the details.
The quality of the cutting.

A regular guy would not notice or care.
 
All OP wants is for his sebenza to "graze" the shrink wrap better. It's pretty shallow cutting. But please, go ahead and dwell in irrelevant details away from staying on point because you guys have transcended what's regular.
 
KingMC said:
I use a boxcutter to cut my shrink-wrap, it cuts better than any knife I currently own and if it ever gets dull I just swap the blade. If you're using a Sebenza for warehouse work, you aren't using the best tool for the job; I used to use all my knives for cutting up cardboard and wrap, until I realized that I hate sharpening and my work-issued boxcutter works best anyways.

Use the tool designed for the work.
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I agree with using a box cutter on cardboard but IME nothing beats a real knife for shrink wrap and strapping. Cutting open shrink wrap and banded pallets of drums at work is a night and day difference between a half inch box cutter and a 3.5inch Millie. I can do 3 with a long edge to my coworkers 1 with a box cutter. Use both. ;)

To the op. The only thing I can think of is polished vs toothy too. Polished edges just don't bite as well into smooth plastic. I notice it more on strapping though. It's not the grind type. My yo2 does exceptionally well at work and it's hollow ground
 
jasonbroni said:
Ok - so I get my small 21 sharp enough to shave (touch up) my cheeks at work (to maintain my awesome beard) lol and s-cut news print.
Subject change - my spyderco dice and para 3 are just as sharp, but... when the dice and para 3 simply touch, graze, or even look at shrink wrap - it cuts. The sebbie can lightly pass/graze the wrap and not cut?? What the hell? Is it the hollow grind vs the flat grind? My angles are roughly the same - dice and para at 17 dps and (maybe) the sebbie is at 17 or 18?
I don't get it?? (Although I'm guessing it's the flat grind?)
What do you guys think?
Thanks in advance.
Click to expand...

I'd bet the apex isn't as keen. Easy to do with CRK. They run the steel softer than a lot of other manufacturers.

If you'd like I can sharpen it for you. I'd just ask you to cover the shipping.
 
If my knife doesn't cut what I'm trying to cut, then I sharpen it so it does.
That is as far as I think about it.
I don't really bother thinking about if the edge is toothy or polished enough, or if the grind is optimal for it, etc., I just make it sharp so it cuts things.

So far, that has worked for me. :)

Edited to add: my Umnumzaan cuts things just fine. It got dull so it wouldn't, but then I sharpened it, and it does. It is sharpened at some angle or other, at whatever grit of silicon carbide paper I had left at the time. ;)
 
OP stated that he is starting out with sharp knives. So yeah, excellent advice...
 
Maybe the OP is confusing shrink wrap with some other medium?! I don't seem to have any problems with this..even on my "dull" knives that I only strop to touch up..
 
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