I do a lot of tracing and probing trying to follow wires in private homes for Ethernet access. I recently got a bed of nails for my signal generator, hoping it would make it easy for me to simply clamp onto a wire instead of having to strip the wire and use alligator clips. It appears that the distance between the "nails" and the clamping side is so large it will not pierce a standard telephone wire during testing of the product I received.
Is this defective, or should I simply build up the flat under the bed of nails to increase the pressure. This is my first experience with a bed of nails set, so I don't know what the distance is supposed to be inside the clamp. I have a piercing clamp, and that single point actually goes beyond the flat through a hole, but it's only good for heavier wires. If I use that clamp, and can get it centered on the wire, it will snap the wire for sure. I actually modified that one to fit my VOM.
Any advice welcome.