These Rockler and Bench Dog pocket hole clamps are designed to be used with 3/8″ pocket holes on 3/4″ boards, and help make part alignment quicker and easier. Simply use it to align adjoining segments, drive in a screw to lock things in, and then move to the next pocket hole grouping.
Pocket Hole Clamp via Rockler
Rockler Pocket Hole Clamp via Amazon
Bench Dog Pocket Hole Clamp via Amazon
I have one and it works awesome but it only works on small boards. I have to force it on to work on 1×4 material. For most face frames that’s ok but sometimes you need a bigger opening.
I’ve decided to finally order one for myself. I’ve seen one or two DIY designs on the web that you might find useful for working on larger material.
Here’s one: http://lumberjocks.com/topics/14434