Clamping Cauls are back for a LIMITED RUN! Woodpeckers phenolic Clamping Cauls bring a trick that’s been around for thousands of years into the 21st Century. We’ve all seen the trick of using a pair of slightly cambered boards on both sides of a panel glue-up to keep the panel flat. A lot of us have tried it and found the cauls flex too much and don’t put the necessary squeeze on the boards. You also would not be alone if you accidentally glued your cauls to your project. Woodpeckers phenolic Cl