They look very similar in construction and may share parts ( just my hunch ). Richard: I looked at this a few years ago and have seen in person both guns. Adjustable depth, viewing of pins, large pin capacity, swivel air connector, side air blower for blowing away any residual dust while pinning, etc. quality, just a couple models instead of many, and the Cadex has all the range you could want up to 2' I believe. The biggest problem with Grex is their sales tactics at the woodworking shows! Well, of course there are things that swayed me to the Cadex. I've used the Cadex for 9 months now and am extremely happy with it. He also has EVERY size pin, including partial headed pins (that work in the Cadex - but not in the Grex). It has the best range of lengths, and the best features, and the best pricing for the features.ДЄnd yes, I finally got one from the best seller I could have hoped for, and I found it on Ebay. I finally found the articles that reviewed the Cadex, which I had never heard of. They are 'pretty green', but found that was about the extent of it. I saw, and demo'd the Grex's at two woodworking shows over a year apart. It seems I shopped the 23 Ga pinner's forever.

If you had a choice of either the Grex P635 or Cadex CPB23.35 which would it be and why?Richard,

When I do a search I find more on Grex and don't know if there is a reason Grex seems to be more popular. I like the Cadex for its versatility to shoot slight headed brads. Both Cadex and Grex rate high in the tool reviews and feed back from this site. I'm looking into purchasing a 23 gauge nailer, probably the 1 3/8' model.

Cadex cpb23.35