Leon wrote:


Here is the problem that I had and probably most everyone has or will
have. Both the K3 and K4 use a jam nut to secure the clamp rod
position on the ram. The nut for all practical purposes has to be
tightened to some degree with a wrench or it works loose from being
clamped/loosened repeatedly. That is the problem with the K3. Tightening
the nut against the ram insert can result in the nut and
insert turning together when you try to loosen the jam nut. The
composite material does not hold the insert securely enough to
prevent slipping when loosening. The K4 is all steel.

If I were to buy again I would go with the K4, it's design prevents
the problem. I reached around/over the material before I got the K3,
I could do that again.

Yup - I'm pretty well decided on the K4. Hard for a guy like me to not take
a closer look at the Harbor Freight unit, because it does look good and gets
great reviews, but this is one of those times when I'm just going to pull
the trigger on the guys who are best known in their industry. If the HF
unit was twenty or thirty bucks cheaper than it is, it would be an easy
decision, but it's only 30 bucks less than the Kreg, and the Kreg just has
too good of a name to ignore. Sometimes ya just gotta go all the way - even
if it's not painted green...

--

-Mike-