Taking apart a knife

pwet said:
why 5 bushings ?
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jec006 said:
A lot of knives use thread-lock which will make the screws extremely hard to loosen - that couple with the fact that torx heads are relatively easy to strip compared to flathead or Phillips makes it very hard to get some of the out.

In my experience with enough downward (into the screwhead) force while turning they can be gotten out without stripping the head. However, there are a few can't manage to get out (the torx screw on the thumbstud thingie on my CRKT Horus). Idk if they make such things - but an impact driver with precision bits would be the way to go.
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TORX are harder to strip, you just have to use the properly sized driver.

I hate Phillips head screws because it's hard to properly tighten them unless you have a perfect fit with the screw driver. TORX was designed to not have the bit turn out of the screw head while Phillips was. It was a cheap way of torque control.
 
My advice for taking a folder apart is not to do it if you are uncomfortable with the process to begin with. There are lots of people that take a knife apart and are unable to reassemble it. Best practice is to lay out a shop cloth or towel, in case a screw goes flying out, it will not bounce. Patience is also key, rushing will usually lead to losing a part or 3. Make sure you have enough light to work comfortably with, no such thing as too much light.

Using the correct bit sizes will almost always ensure you do not strip a screw head. Again this is where the old addage of "measure twice cut once" comes into play. many popular hardware stores sell stripped screw extractor bits that will remove the damaged screw.
 
A washer might be a really short tube but different surfaces are in use. I agree with Esav in that washers are used in knives and a bushing is a tube of some sort that rotates around something.

An ezy out is basically a reverse thread screw and you drill the stripped screw head out and use the eze out which has worked great on all the stripped heads I have tried it on including the really small screws used on knives.

The detent ball bearing is already flat and worn out. How old is the knife? Another reason why I really don't like liner and frame locks. To bad so many great knife designs use this type of lock because they really are inferior from a engineering stand point.
 
Josh K said:
TORX are harder to strip, you just have to use the properly sized driver.

I hate Phillips head screws because it's hard to properly tighten them unless you have a perfect fit with the screw driver. TORX was designed to not have the bit turn out of the screw head while Phillips was. It was a cheap way of torque control.
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Agree - they are harder to twist up out of. However, the amount of metal holding the bit is much smaller - making it easier to break off with less force, especially on really small screws.
 
jec006 said:
Agree - they are harder to twist up out of. However, the amount of metal holding the bit is much smaller - making it easier to break off with less force, especially on really small screws.
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Actually the force is distributed over a larger surface area so it's less likely to strip unless your putting too much force on it.
 
I'm glad I carry a Mnandi. I actually took it apart,cleaned and lubed it in a shoe box while laying in bed watching TV and I mean fully laying on my back. It took less than five minutes.
 
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