Glossary “barrel faced ring” Definition:
A compression piston ring with a rounded contact face.

Glossary “barrel finish” Definition:
The rounded surface on a piston skirt.

Glossary “barrel sanding block” Definition:
Small, handheld sanding blocks of round construction that are ideal for small, isolated defect removal.

Glossary “barrel shape” Definition:
Brake drum having a frictional surface that is larger in the center than at the open end or the rear of the drum.