BK3 Design Mod

The Warrior

The Warrior

🇺🇸 INSANE VIKING 🇺🇸
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I watched the video I believe moose did, where the firemen used the BK3 to enter a car, cut open the roof, etc. The end of the blade broke while prying, and I always felt the blade would not have broken if the rope cutter wasn't on the end of the blade. I realize that most wouldn't use the blade to that extreme. Here's a BK3 I took the rope notch out of. What do you think?

Before:

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After:

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I agree but there may be specific instances where a rescuer will need the rope cutter for precision, not to cut multiple ropes with an accidental stroke with the serrated end of the blade. The rendering is nice though, makes it look like a solid prybar.
 
Looks like a good idea to me, but the hook will stay, we found uses for it. All I will say, is that Ethan liked the demo, saw some things that made him think. Thinking, usually ends up with something changed or something new all together. I can't wait to see.

Good post, brother, and good shop skills, that looks flawless.

Moose
 
I agree that the rope cutter is a useful tool to the blade, no doubt. And, like I said, that was put to an extreme that most wouldn't take it to. I actually did another rendering, with a cutter sticking out the back of the handle, but for 1) a little dangerous, and 2) you wouldn't get the extended reach. Thanks for the compliments, btw. The GIMP program works well for me.
 
Here's what I was talking about. Don't laugh too hard, lol:

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A bit Star Trekish.... and I snickered a l'il ;) Maybe you can put it in the front of the grip in the handle, that way it's out of finger reach or such?
 
The Warrior said:
Here's what I was talking about. Don't laugh too hard, lol:

BK3.png
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Gotta call WTF is that on this abortion.:D Sorry, but that is a hazard in a half, and not to mention UGLY:foot::D

I love the work, and I am being completely fun here, not really baggin' on ya, just baggin' on the knife.LMAO.

Moos
 
Okay, okay, not such a good idea, lol. :D I was just trying to think of a way to incorporate the notch without it being in the blade. I didn't originally post it because of the danger of it mainly. I am glad you all are getting good laughs out of it though. :D It wasn't completely useless after all. ;)
 
The Warrior said:
Okay, okay, not such a good idea, lol. :D I was just trying to think of a way to incorporate the notch without it being in the blade. I didn't originally post it because of the danger of it mainly. I am glad you all are getting good laughs out of it though. :D It wasn't completely useless after all. ;)
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Try shortening the depth, and moving it closer to the end. When we broke it, we lost nearly 1 1/2" off the blade.

Oh, and for the record, it broke under extreme, repeat, extreme abuse. What we were doing, besides being dumbasses, is testing to see where the limits were. We found them.

Moose
 
I did think about shortening the depth a bit. Is this a quarter in thickness? Perhaps 5/16 would be better? Definitely more than the average user is going to be putting it through. I was extremely impressed with the video.
 
The Warrior said:
I did think about shortening the depth a bit. Is this a quarter in thickness? Perhaps 5/16 would be better? Definitely more than the average user is going to be putting it through. I was extremely impressed with the video.
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Solid 1/4". And even at that, its a handful, I assure you. Oh, and about the sharpness of the blade, it was stock out of the box, but with sometime, you could make that thing ungawdly sharp. Chisel grinds can get real sharp.

Moose
 
I have no doubt. Although not really for me, it is impressive.
 
You know I have never really heard it clearly explained what that notch was for. Some have said wire-breaker, some have said belt/rope cutter, etc... But for those of us that have that, I really don't think you could use it for cutting rope or a seatbelt, it is too darn thick. I get the idea of the hook though, that could be very useful I am sure, but if so, maybe moving it up and making it not as deep would be a good way to go about it?
 
Moving it closer to the end would def be less to break off, as moose said earlier, if it even would, under "normal" circumstances. Not as deep for sure would help.
 
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Here ya go gents. Shortened the depth, and closer to the end:

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After:

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moosez45 said:
Try shortening the depth, and moving it closer to the end. When we broke it, we lost nearly 1 1/2" off the blade.

Oh, and for the record, it broke under extreme, repeat, extreme abuse. What we were doing, besides being dumbasses, is testing to see where the limits were. We found them.

Moose
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it didn't just break, it grenaded. very bad. perhaps too hard. mmm.

me? i hate the "gut hook"... it's more of a super wire cutter, yanker than anything else, yes? it's a very poor seat belt cutter. they have specialty tools for that purpose which work REALLY well.

i'm sure Ethan is pondering a few things ;)
 
The simple solution to this problem (& I do like to think simple,LOL) is to include a seperate smaller knife/tool with the seatbelt/wire cutter on it instead of on the main workhorse. Like the BK7 & BK9 that were available with the BK13 in the little side pouch/mini-sheath. I like it much more without the notch in it.
 
True. Could always have a separate tool in a sheath pocket. I just think the BK3 would be much stronger without the notch. Bladite also brings up a valid point, that the blade didn't really break, it shattered. Perhaps too hard as he stated. Maybe there was a tempering problem?
 
Regardless of why it failed, that notch has to make it about 20-25% less strong by the tip, which is where you need the most strength, as it IS designed to pry.
 
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