I bought mine at K-Mart. They had exactly what I was looking for:
one-inch Pony pipe clamps. These are very good quality at a low
price, but stick with the 1" size, not the smaller. Since then I've
purchased Bessey (made in Germany) K-body clamps, but I still use the
Pony pipe clamps on occasion. Do yourself a favor and stay away from
cheap clamps typically made in Asian countries. Thumbs up to clamps
made in the USA--they are all very good. There are a few
frustrations working with pipe clamps (black staining, crank hits what
you are trying to clamp, uneven pressure, marring, etc) but there are
ways to deal with it.
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