Watch Case Holding Chuck 360 Kit

Professional Watch Case Holding & Finishing System

Dear Watchmakers and Friends in the Watchmaking Industry,

We are pleased to introduce our newly developed TR Maker Watch Case Holding Chuck 360 Kit, designed to securely and precisely hold watch cases, case backs, bezels, and various watch components, allowing you to perform your work with greater ease, accuracy, and control.

Developed for professional watch repair, restoration, polishing, and surface finishing applications, this precision holding system provides excellent stability and control when working with delicate watch components.

Premium Materials & Precision Manufacturing

The main body is manufactured from high-strength 7075 aerospace-grade aluminum, combined with precision-machined stainless steel components.

The interchangeable jaws are manufactured from brass, specifically selected to help minimize the risk of scratches, pressure marks, and deformation when holding delicate watch components. Proper clamping pressure should always be applied.

All mechanical components are produced using precision CNC machining and turning processes to ensure dimensional accuracy, reliable operation, and excellent mechanical compatibility.

The aluminum components feature a durable anodized finish, providing enhanced resistance to wear and corrosion for long-lasting professional use.

Three Interchangeable Jaw Sizes

The Watch Case Holding Chuck 360 system is designed to accommodate different watch components through interchangeable brass jaw sets.

Available jaw sizes:

• 14 mm: Precision jaws for smaller watch components.

• 18.5 mm: Medium-sized jaws for various watch cases and components.

• 30 mm: Larger jaws for wider watch components.

The adjustable three-jaw mechanism allows the jaws to expand and accommodate different diameters.

The stepped jaw design also provides multiple contact positions, helping achieve stable and controlled clamping of components with different shapes and dimensions.

Please note: The exact minimum and maximum clamping diameters for each jaw size will be provided separately and added to the product specifications.

Available Kit Configurations

To accommodate different professional requirements, the Watch Case Holding Chuck 360 is available in four configurations.

All configurations include one main chuck body. Additional interchangeable jaw sets are supplied according to the selected configuration.

This flexible system allows customers to purchase only the jaw sizes they need, avoiding unnecessary costs while maintaining the option to expand their setup in the future.

Applications

• Secure holding of watch cases during surface finishing

• Holding watch case backs

• Securing bezels and other watch components

• Polishing, satin finishing, and surface restoration

• Professional watch repair and maintenance

• Precision holding during delicate workshop operations

Technical Specifications

Package Contents

The package contents depend on the selected kit configuration.

Standard Kit

• 1 × Watch Case Holding Chuck 360 main body

• 1 × 14 mm brass jaw set (3 jaws)

Dual Kit – 14 / 18.5 mm

• 1 × Watch Case Holding Chuck 360 main body

• 1 × 14 mm brass jaw set (3 jaws)

• 1 × 18.5 mm brass jaw set (3 jaws)

Dual Kit – 14 / 30 mm

• 1 × Watch Case Holding Chuck 360 main body

• 1 × 14 mm brass jaw set (3 jaws)

• 1 × 30 mm brass jaw set (3 jaws)

Complete Kit – 14 / 18.5 / 30 mm

• 1 × Watch Case Holding Chuck 360 main body

• 1 × 14 mm brass jaw set (3 jaws)

• 1 × 18.5 mm brass jaw set (3 jaws)

• 1 × 30 mm brass jaw set (3 jaws)

Accessories Included with Every Configuration

• 1 × Open-End Wrench

• 1 × Allen Key

• 1 × Protective Storage Case

Mounting & Equipment Compatibility

The Watch Case Holding Chuck 360 Kit has been specifically developed for full compatibility with the TR Maker product family.

The rear of the chuck features an M10 metric threaded mounting connection, allowing users to design and manufacture their own custom mounting adapters, supports, or holding fixtures according to their individual requirements.

The chuck can be mounted directly onto the TR Maker YMR-01 Multi-Purpose Power Unit and is designed to integrate with upcoming products and accessories in the TR Maker range.

While the product may also be adaptable to other machines and equipment, we cannot guarantee full compatibility with third-party systems. Customers should verify mounting dimensions and mechanical compatibility before use.

Additional Clamping Dimensions

The stated 14 mm, 18.5 mm, and 30 mm dimensions identify the available jaw configurations.

Each jaw set features an adjustable opening range and stepped gripping surfaces, allowing it to accommodate different component diameters.

Detailed minimum and maximum clamping dimensions for each jaw set will be measured and added to this product description shortly.

Shipping & Order Information

**Orders are scheduled to ship on November 20, 2026

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