Description
Product Overview
The K72-125 Lathe Chuck by TINVHY is engineered for precision metalworking and woodworking applications where stability and flexibility are paramount. Featuring a 5‑inch (127 mm) diameter, the chuck accommodates a wide range of workpiece sizes, from small rods to larger cylindrical components. Its four‑jaw independent design allows each jaw to be adjusted separately, providing a secure grip on irregular or off‑center pieces. The reversible jaw mechanism further expands its versatility, enabling users to flip the jaws for optimal positioning without the need for additional tooling.
Manufactured from high‑grade steel alloy, the chuck delivers exceptional durability and resistance to wear, ensuring consistent performance over thousands of machining cycles. The internal bearing system is precision‑ground to reduce run‑out and vibration, which translates into smoother surface finishes and tighter tolerances. Weighing 11.02 lb (5 kg) and packaged in a compact 7.09 × 7.09 × 6.69 in (18 × 18 × 17 cm) box, it is easy to handle and store in any workshop environment.
![[Product front view showing all components]](https://www.glowshop.store/wp-content/uploads/2026/07/7c52900413594fb58b5331a06081d366.jpg)
Usage
This chuck is suited for a broad spectrum of lathe operations, including turning, facing, drilling, and threading. Whether you are a hobbyist building custom parts in a home garage or a professional machinist in a production setting, the K72-125 delivers reliable clamping for steel, aluminum, brass, and even certain plastics. Its quick‑change capability reduces downtime, allowing you to swap workpieces rapidly and maintain high productivity. The reversible jaws are particularly advantageous when machining tapered or asymmetrical components, as they enable fine‑tuned alignment without sacrificing grip strength.
Designed for compatibility with standard 5‑inch lathe spindles, the chuck integrates seamlessly with most bench‑top and floor‑standing lathe models. The simple installation process requires only basic hand tools; no specialized equipment or extensive calibration is needed. Once mounted, the chuck’s balanced mass helps dampen spindle vibrations, making it an excellent choice for precision finishing passes where surface quality is critical.
Why Choose Us
Choosing the K72-125 means selecting a product backed by TINVHY’s commitment to quality and customer satisfaction. Each chuck undergoes rigorous testing for load capacity, concentricity, and durability before leaving the factory, ensuring that you receive a component that meets or exceeds industry standards. Our after‑sales support includes technical assistance, replacement parts, and a responsive warranty service, giving you confidence that any issues will be addressed promptly.
Beyond the mechanical advantages, TINVHY emphasizes sustainable manufacturing practices. The steel used in the chuck is sourced from certified suppliers that adhere to environmental and safety regulations, reducing the ecological footprint of each unit. By investing in a long‑lasting, high‑performance chuck, you also reduce the need for frequent replacements, contributing to a more sustainable workshop.
Key Features
- Four‑jaw independent design provides secure grip on irregular workpieces.
- Reversible jaws allow quick adjustment for varied dimensions without extra tools.
- High‑grade steel construction ensures long service life and resistance to wear.
- Precision‑ground bearings minimize run‑out for smoother, more accurate turning.
- Comprehensive after‑sales support and warranty for peace of mind.
FAQ
Can this chuck be used on a 4‑inch lathe spindle?
No. The K72-125 is sized for a 5‑inch spindle. Using it on a smaller spindle may cause imbalance and reduced clamping performance.
What types of materials can the chuck safely hold?
The chuck is rated for common machining materials such as steel, aluminum, brass, and certain engineering plastics. It is not intended for extremely brittle or highly abrasive materials without additional protective measures.
How do I reverse the jaws for different workpiece sizes?
Each jaw can be rotated 180 degrees using the built‑in adjustment lever. This reversible feature lets you align the jaws to match the specific diameter or shape of the workpiece, providing a tighter grip without changing the chuck.
Is any special tool required for installation?
Installation requires only a standard wrench or socket set to secure the chuck to the lathe spindle. No specialized tools or calibration equipment are needed.
What warranty does TINVHY offer for this chuck?
TINVHY provides a one‑year limited warranty covering manufacturing defects. Should any issue arise, contact our support team for troubleshooting, replacement parts, or a full replacement if warranted.





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