Blade striking back spacer

Nosetotail

Nosetotail

Joined
Jun 10, 2007
Messages
398
I have had a BM 960 since Christmas. Needless to say, it has been flipped open and closed several hundred times. I have carried it for EDC a few times but have managed to not cut anything of consequence. Here's the thing, the blade has, pretty as can be, microchips along about a half inch of it, and they are spaced perfectently even about the distance of the ridges in the backspacer.

I'm pretty sure my blade is striking my backspacer. I was under the impression that a necessary integral design of a pocket knife was a stop to protect the blade from this kind of damage. However, this isn't the first time I wondered if the backspacer caused damage. I bought what I thought was a brand new 940 from a local gun shop, and proceeded to flick it open and closed a coule hundred times over the next 24 hours. I returned it the next day upon discovering a small but substantial chip in the curve toward the tip. I have to admit I might have missed the chip when I bought it, but I have wondered since if I caused the chip by flipping the knife closed too hard.

If the back spacer indeed is causing the damage, should this be considered a flaw in the knife, or my fault?
 
Is the 960 an auto? Many autos don't have a stop, but they should.
A lot of knives are designed by machinists who have no idea of how a knife should work.
I'm not familiar with the BM model numbers.
Bill
 
Bill,

I don't think th 960 comes in an auto version.

Nosetotail,

I've played with a 960, it's one of my favorite BM designs, though I didn't look closely at the knife when closed for this issue. When I first got a Griptilian, I did look for this on the axis lock. The lock bar should be stopping the blade before the edge gets to the back spacers. You might want to try sharpening the edge and flipping it some more if you just can't tell by looking.
 
You might also want to try to put maybe some thread or paper around the backspacer and flipping it to see if it cuts into the material.
 
BD:

Sorry for assuming everyone would know which kind of knife I am talking. The BM 960 is a smaller axis lock folder that has appeal as a gentlemans knife, but is enough knife for smaller edc if you choose to edc it. I got one to carry as a gentlemans knife but I can't resist edcing from time to time as it is such a smooth knife, and definately my favorite.

K1: I thought about trying that, but I haven't figured out how to get the material to lay flat during a flip. I figure thin paper would be the best, or maybe the pressure activated carbon paper. I could just press my blade and see if it leaves marks on the carbon paper.
 
You can cut a strip of cork or leather or cardboard to fit in there by friction and that will cure the problem. Cork is my favorite because you don't have to worry about it getting wet.
 
Sorry for the delay in response I havn't been online in a couple of days. I resharpened my knife, and on closer inspection, I think I figured out why some axis lock knives push the blade out when you pull on the lock bar. Even if this isn't the reason, I have already begun teaching myself to flip it closed and then release the lock bar. I have to flip it just light enough to not bounce the blade off of the lock and for now it is a little tricky, but I don't like the idea of continually chipping the blade on my favorite knife.
 
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