Dowels have spiral grooves to allow what to escape the hole?

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Prepare for the NOCTI Cabinetmaking Exam. Study with flashcards and multiple choice questions, each with hints and explanations. Get ready for your exam!

Multiple Choice

Dowels have spiral grooves to allow what to escape the hole?

Explanation:
Spiral grooves in a dowel act as channels that give glue somewhere to go as you press the dowel into the hole. When you insert the glued dowel, excess glue is squeezed out through those grooves instead of getting trapped inside the joint, which helps the dowel seat fully and keeps the surface clean. The grooves also help spread the glue along the hole for better adhesion. They aren’t meant to increase strength, shorten glue cure time, or improve alignment.

Spiral grooves in a dowel act as channels that give glue somewhere to go as you press the dowel into the hole. When you insert the glued dowel, excess glue is squeezed out through those grooves instead of getting trapped inside the joint, which helps the dowel seat fully and keeps the surface clean. The grooves also help spread the glue along the hole for better adhesion. They aren’t meant to increase strength, shorten glue cure time, or improve alignment.

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