Watch Back Cover Repair Chuck High Exact 8 Mm Watch Lathe Collet

Product Identity: This repair tool set is a watch lathe accessory designed for precision work on watch cases and related parts, giving technicians a dependable setup for careful handling during repair tasks.

Primary Function: As an expanding collet set, it securely grips workpieces on an 8 mm watch lathe collet, helping keep parts centered and steady for polishing, grinding, and repair operations.

Versatile Use: The watch case expanding chuck design supports multiple diameters, including 30 mm, 35 mm, and 40 mm, so you can switch between common repair jobs with less hassle.

Workshop Advantage: Built for repeat use, this high-precision internal expanding mandrel set helps improve control and productivity when working on threaded areas, case backs, and toothed rings.

Intended Purpose: ideal for fine watchmaking and maintenance, it is made to support accurate clamping so delicate parts can be processed more safely and with a cleaner finish.