I dunno, I used to hand tighten them with a rubber glove and then I'd HAVE to use a wrench to remove it 3 months later.
I don't have a digital camera and my SLR doesn't have a macro lens so I can't really take a pic.
I'll try to describe it as BEST as I can
its a Ford small block (302 V8) so the oil filter is a horizontally mounted filter with a slight angle downards (on the driver side). The anti-sway bar is connected between the frame sidemembers and the lower control arms, but it does that "U" thing under the engine.
So one part of the bar is about 1/16" from contacting the oil filter's base (or top - the part that is flat and painted). There is no way of sticking in a slip wrench or a clamp wrench because of clearance issues around the filter and because of the 1/16" space.
The only way, from what I can see, is to use a chain type wrench where you connect it manually, or something that straps around the filter but is flexible enough to slip in.
Or tighten it by hand - but I am not sure how tight the filter should be. the box says after the gasket makes contact with the block, tighten 3/4 turn. Then 3 months later, I need a wrench to remove it.