08-10-2015, 11:08 PM
I usually inject carpenters glue using a syringe. However another method that I have used for really big bubbles, is to carefully drill from the backside using a 1/16 drill bit. Drill only through the wood, not the veneer. Drill using high drill speed but very very low pressure. Then inject carpenters glue into the hole and clamp the veneer down.