I just got them today and I already love them. I use a spiral jig and my old arthritic fingers have trouble holding the wire. I just used this with a 26 gauge spool and wire. It held the wire well and let it slide as the wire wrapped around my tool. Normally the wire needs to be cut at a certain point, but with this clamp I was able to let it keep holding the wire as long as I continued to wrap the wire to the end of the connecting rod. Then, as usual, a coil of that length is difficult to remove from the rod, but I held the wire and rod at the base of the rod and used this clamp to remove the wire. Excellent, the spool comes off easily, there are no scratches on the wire and no bends in the wire when trying to remove it from the stem. Every once in a while as I wrap the wire around the wrapping tool I let go of the wire. As a result, the winding rod is unwound several times. This needs to be fixed and if you count you lose the count. I loosened that clamp and the winding bar didn't move. The clamp held everything and prevented the unwinding problem. Love it. thank you It's already a favorite instrument, even for just a few hours.