Lathe Chuck Bison-Bial 8712-5 PZKA — fixed lathe chuck, model 8712-5 PZKA

The Bison-Bial 8712-5 PZKA fixed lathe chuck is a three-jaw workholding accessory designed to secure cylindrical and turned workpieces on a lathe. Built for stable mechanical clamping, this chuck is intended for general turning, facing and related machining operations where repeatable concentricity and firm grip are required. The design fits manual and powered lathe setups; compatibility depends on the machine spindle and mounting configuration.

Advantages

The fixed three-jaw configuration provides quick and concentric clamping of round and hexagonal parts without the need for individual jaw adjustment. Its robust construction offers consistent holding force for typical metalworking tasks, reducing part slippage during turning and facing. The chuck’s design minimizes setup time for repetitive operations and supports a range of standard lathe workholding requirements.

Suitable for

• Turning and facing of cylindrical metal parts
• General-purpose metalworking in small workshops and maintenance departments
• Manual and powered lathe operations where a fixed three-jaw chuck is appropriate
• Tasks requiring repeatable concentric clamping of round or hexagonal stock

Key specifications

• Three-jaw fixed chuck configuration for self-centering clamping
• Mechanical clamping suitable for turning, facing and related operations
• Designed for compatibility with standard lathe spindles and mountings (verify spindle connection before installation)
• Durable construction intended for workshop use

How to use

Mount the chuck on the lathe spindle according to the machine manufacturer’s instructions and ensure secure attachment before applying power. Insert the workpiece into the jaws and tighten evenly to achieve concentric clamping; verify concentricity with a dial indicator when precision is required. For removal, power down the lathe and release the jaws fully before extracting the workpiece. Regularly inspect mounting surfaces and jaw condition to maintain safe operation.

Usage recommendations

Confirm spindle mounting compatibility and torque specifications for your lathe model prior to installation. Use appropriate cutting speeds, feeds and coolant for the material being machined, and keep the chuck clean and lubricated to prolong service life. Replace worn jaws if concentricity or grip performance deteriorates.