Comparison photo of the Perma Lok Lacing Needles that I sometimes use with knot work.
My knot tying friend, Manny, recently sent me the longer Super Jumbo needle, and
the other two smaller ones shown I've been using for years now.
I use the smallest(#1193-01) for 0.9mm and 1.4mm diameter cord, the Jumbo(#1193-02) for 1.8mm, 2mm, 2.4mm, and paracord.
The Super Jumbo(#1193-05) is just slighter larger in diameter than the
Jumbo, both still requiring paracord be cut at an angle/point for the
end to fit/screw on tight.
All the various homemade lacing needles are cool, but I always find myself going back to using the Perma
Lok needles simply because they work best, for me...