Here is my review -
I was wanting a heavy duty folder for work. I'm usually a fixed blade guy, but thought I'd try something different. The Zero Tolerance line from Kershaw caught my eye, the MUDD in particular, so I went for it. I've been carrying the knife now for a couple of weeks and using it for EDC and all attendant duties. Here is what I think:
My usual work folder has been a Vic OHT, which is not a real small knife. Here is the ZT 0500 with it side-by-side in comparison -
The 0500 is a big folder. It has a 4" blade and a 5" handle, nine inches OAL. The scales are made of carbon fiber, and the pivot pin is enclosed in rubber washers to prevent sand and water, etc., from entering the joint. The thumb stud is large and ridged. It forms part of the thumbrest when the blade is open. The stud is ambidextrous.
The pocket clip is pretty small, and the knife is set up for tip-up carry. It can be carried left and or right. The clip allows the knife to ride very low in the pocket.
The blade steel is 154CM; the blade is a sort of spear point, with swedges on the spine. I convexed the edge somewhat on my belt grinder. I don't care for the "tactical black" finish, but for a work knife it doesn't bother me.
The pivot action is smooth and the lock is like a bank vault. I've been deploying the blade with some authority pretty often per day, it has no play whatsoever.
The scales were very sharp on the edges. I took a foam sanding block to them and rounded them off some. The handle, though large, is very comfortable now that I defanged it, and it is easy to use with gloves on. The thumb stud is large, and easy to find.
The blade was pretty sharp when I got it, but sharpened up very impressively after I convexed it. I use my usual large butcher's steel and ceramic rod to maintain the edge, it seems to keep the edge for quite a long time.
What I've been doing with the knife is my usual type of work; cutting cord and twine, cutting up cardboard, cutting open feed sacks, cutting foam insulation board, etc.
One thing I would (and may still) change about the shape of the blade is the sharpening notch. I find that when making deep cuts through some materials, that notch tends to catch the material and tear, rather than allowing a smooth cut. I sometimes have to pull the blade out a bit before cutting to prevent this.
This knife retailed through LA Police Gear four about $150.00. If you are looking for a big, tough folder, this is a good one.
Andy