Dowels are often made with 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 are often made with spiral grooves to allow what to escape the hole?

Explanation:
Spiral grooves on a dowel provide channels that let adhesive escape as the joint is assembled. When you glue a dowel and drive it into a hole, the glue can be squeezed out and air can be pushed ahead of the dowel. The grooves give a path for that excess glue to exit the hole, helping the dowel seat fully and the joint to avoid suction or glue buildup inside the hole. While air can also vent through the grooves, the design is specifically aimed at letting any excess glue out so the joint bonds cleanly and flushly.

Spiral grooves on a dowel provide channels that let adhesive escape as the joint is assembled. When you glue a dowel and drive it into a hole, the glue can be squeezed out and air can be pushed ahead of the dowel. The grooves give a path for that excess glue to exit the hole, helping the dowel seat fully and the joint to avoid suction or glue buildup inside the hole. While air can also vent through the grooves, the design is specifically aimed at letting any excess glue out so the joint bonds cleanly and flushly.

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