仕上げ
abrasive file
Japanese: やすり
A tool for grinding glass. The grit size determines the coarseness, and it is a consumable item that wears down with use.
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An abrasive file is a rod- or sheet-shaped abrasive tool used to manually polish the edges and surfaces of glass. There are various types, including diamond files—which feature diamond grit electroplated onto a metal plate—and silicon carbide-based abrasive wheels. They are used for hand-finishing details, corners, and small pieces that a table router cannot reach.
When hand-sanding with a file, it is important to control the pressure and direction of the sanding. Sanding in a single direction with consistent strokes produces a uniform finish. Sanding with water (wet sanding) prevents glass dust from scattering and keeps the file from clogging. For a fine finish, use an ultra-fine-grit file such as the Silky Diamond File (SDF50).
Related Concepts
Understanding how to use the SDF50 (silky-diamond-file-50), intermediate grinding, edge polishing, and a table router appropriately will improve the quality of your finish.
This entry is written in Japanese by Rei Chikaoka and translated for readers outside Japan. If something reads oddly, the original is the source of truth.