D'oh! Shouldn't of tried to cut that.

Redmasta said:
Unfortunately I made the cut in one swift motion with a bit of force so the rolls and chips were across nearly the entire edge and were bad enough that the knife was completely dull, I had no choice but to sharpen it. It didn't take too long to clean the blade up, luckily it was only the very edge that was chewed up no deep chips. Probably shaved a year off the life of the blade but what can you do, just have to make sure next time I attempt to cut through rubber it's not reinforced with metal!
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Meh, if it was just barely the very edge that got blunted there's no way you took a year off of it. Maybe a couple months... Don't worry my friend, just use that sucker like ya stole it!
 
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This is a prime example of why I love simple carbon steels so much. I never find my blades wearing down from use on soft, easy to cut stuff. It's always that unexpected hard impact or hard abrasives in a medium that really dull the edge. Good tough steels hold up better, are less likely to chip, and are easier to bring right back to hair popping in less than a minute!
 
I tried to cut up what looked like plastic ivy at my old job to get it to fit in my sweeper truck's hopper with a CRKT M16-14SFG. Turned out to be the flexible kind with a solid wire core. Rolled the entire primary edge and chipped a couple of the veff serrations. This, is why I carry a back up and have subsequently upgraded my collection.

You're definitely not alone brother.
 
Grease said:
I used to work at an online book store. Can't tell you have many times I was opening boxed books, slicing through brown packing tape, only to find out that some dingle put those big brass cardboard staples underneath the tape...

These things really ought to come with warnings. :p
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A really unpleasant surprise, this has happened to me as well. Put a really nice chip in my 440C Böker Plus XS (thin hollow grind) :grumpy:
 
One time I wanted to relocate a bird feeder in my backyard the previous owner secured to the gazebo with string. I pulled out my Puma Hobbytec and proceeded to cut the string. Only problem it wasn't string it was very small steel cable. I was so angry I decided just to keep cutting. The Puma prevailed and the cable was cut. Some time on the stones and edge good to go once again.
 
Yep yep. Tried opening a toy for the little one. Apparently the twist tie has metal in it; and the PM2 didn't like that so much. Had to take it back to the sharpener.
 
I did the exact same thing. It was some high pressure hose
Reinforced with a spiral of steel. Completely rolled the entire edge. I was pissed.
 
About 4 days ago I was surprised by fine steel wire in a bow on a present I was helping my son open. Got to spend a little time on sharpening that night.

I'd never have expected it, and it must have been a higher tensile strength wire as it had no problem dulling the entire blade length before breaking.
 
Just the other day, thought I was cutting a plastic tie and it turned out to be wire coated in plastic. Flatten the blade, had to put the edge back on it. I normally use side cutters for tie wraps and such for that very reason.
 
I put a pair of small chips in the edge of my PM2 cutting some stranded copper speaker wire a week ago. Didn't realize it at the time, only later while sharpening it. I left the chips to sharpen out over time. They are small but big enough to need a lot of steel removal to fully eliminate. I guess it is partially serrated now. :)
 
Rasco said:
That wasn't your only goof. You also made a topic containing the words "shouldn't of" in the title... >_<
You're thinking of the contraction "shouldnt've" which is short for "should not have", but when you never see it written, and only heard it spoken aloud, it might sound like "shouldn't of", but that's totally wrong.
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I jus wanna kepe on readin your stuff...but hafta hang up now...
 
I find myself using wire cutters (or side cuts as some call them) whenever I cut zip ties and especially rubber trim. Does a cleaner cut, and a lot of that stuff is reinforced nowadays.

Then again, I work in an office, so I'm not confronted with situations like that during the day. It's in the garage, where my big honkin' toolbox resides full of problem solvers.

But even in the house, when I come across a zip tie, I usually make a bee line for the toolbox. Less drama cutting them, snip and the package is open.

And if forced to use a knife, I usually pry against the blade, by inserting the blade then twisting the whole knife blade against the zip tie, not sawing through it. Zip ties are tough, and if the blade slips off it can come off with such speed that anything in the way is getting sliced. Including me.
 
I find myself using wire cutters (or side cuts as some call them) whenever I cut zip ties and especially rubber trim. Does a cleaner cut, and a lot of that stuff is reinforced nowadays.

Then again, I work in an office, so I'm not confronted with situations like that during the day. It's in the garage, where my big honkin' toolbox resides full of problem solvers.

But even in the house, when I come across a zip tie, I usually make a bee line for the toolbox. Less drama cutting them, snip and the package is open.

And if forced to use a knife, I usually pry against the blade edge, by inserting the blade then twisting the whole knife blade against the zip tie, not sawing through it.

Zip ties are tough, and if the blade slips off it can come off with such speed that anything in the way is getting sliced. Including me. Screw that!
 
jimh0220 said:
No steel is super for metal. Metal on blade edge = bad.
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See I knew this... but thought it wouldn't make as big of a chip as it did when I used my ZT 0350 to cut through an old piece of cable wire sticking up in the middle of my yard :foot:. When I got to the core it took a bit of pressure to get through but put a bit of a chip in the blade. I've since smoothed it out and its significantly smaller then before. Next time I'll walk back into the garage and get the snips :D
 
Rubber alone is one material that dulls an edge very quickly. The best thing I have found if you have the room to use it is a 18tpi hack saw blade.
They even make those little short handle ones now for tight spots.
 
Bill1170 said:
I put a pair of small chips in the edge of my PM2 cutting some stranded copper speaker wire a week ago. Didn't realize it at the time, only later while sharpening it. I left the chips to sharpen out over time. They are small but big enough to need a lot of steel removal to fully eliminate. I guess it is partially serrated now. :)
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Interesting. I've always cut through aluminum or copper wires like that and never noticed significant damage to the blade. Only harder metals.
 
Normally what i do for zip ties, i use the needle nose on my leatherman, clamp on and twist like 180 degrees and off it comes. I recently worked on a knife for an old coworker, he gutter a stingray against the concrete :(, took me about 3 hours to get the knife to great condition (blood and salt water rust everywhere on the knife).
 
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