Toyo Associates
Toyo Four-Jaw Independent Chuck φ80mm

Manufacturer: Toyo Associates, Ltd.
Features
This φ80 mm four-jaw independent chuck is designed primarily for gripping workpieces on lathes, and it delivers exceptional control for demanding machining applications. Therefore, it provides greater flexibility than a standard three-jaw scroll chuck. Because each jaw moves independently, you can adjust them individually to achieve precise centering and secure clamping of rectangular columns and irregularly shaped materials.
Moreover, this independent jaw structure makes it especially effective when highly accurate gripping of round bars is required. As a result, you can fine-tune alignment to minimize runout and improve machining precision. Instead of relying on synchronized jaw movement, you gain full manual control over positioning and balance.
In addition, the jaws are reversible, which means you can use them as both straight jaws and reverse jaws. Consequently, you can grip larger diameter materials and expand your clamping capacity with ease. Furthermore, this chuck can also be used as an attachment for milling machines or mounted on a rotary table to hold materials securely during milling operations. By combining independent adjustment, reversible jaws, and cross-machine compatibility, this φ80 mm four-jaw chuck enhances versatility, precision, and overall machining performance.
Specifications
| Chuck Diameter | φ80mm |
| Grasping diameter | For normal claw: φ5~40mm |
| When reverse claw: φ35~80mm | |
| PCD | 66mm |











