As requested by r-philp, here's a write up of how I made my wire clamping tool. This is simply a loose copy of the Clamp Tite brand tool. It is not to scale and absolutely not my idea/design in any way. I built both copies from a photo in the Garret Wade catalog.
Step 1: Tools and materials
Tools: ( Not pictured )
Files- standard set and jeweler's set
Drill press with vice ( I used a cordless drill in some of my steps but the steps can be done on the drill press )
Dremmel with cut-off wheels
Sandpaper- coarse and fine
Drill bits- 7/64" & 13/64"
Calipers and ruler/tape measurer
1/4" I.D. aluminum tubing
1/8" ss rod
An old center punch ( I used a piece of 3/8" ss rod and turned my own nose piece )
1/4-20 ss all-thread ( Not pictured )
1/4-20 wing nut ( I turned my own from a large brass punch )
1/4" UHMW washer ( Not pictured. A regular steel washers might destroy your tool over time and regular plastic washers are too soft to hold up to the pressure of pulling the wire )