Value Collection 429-3004 Lathe Chuck 4 in 3 Jaw Plain Back

Product Description

The VALUE COLLECTION 429-3004 is a 4-inch diameter, 3-jaw self-centering manual lathe chuck designed for use on metal lathes in machine shop and toolroom environments. The plain back mount configuration allows the chuck to be fitted to a backing plate machined to match the lathe spindle, making it adaptable across a range of lathe models. Cast iron construction provides rigidity and resistance to wear under repeated use. The chuck ships with a chuck wrench and one-piece solid jaws. Axial runout is rated at 0.003 inches, supporting consistent part-holding accuracy for turning operations. This chuck is installed and serviced by machinists and tool room technicians.

This chuck is suited for manual turning operations on small to mid-size metal lathes in job shop, maintenance, and production environments. The self-centering scroll mechanism allows rapid workpiece mounting without individual jaw adjustment, making it efficient for repetitive operations. The plain back mount style requires a separately sourced or shop-machined adapter plate to match the specific lathe spindle nose configuration. One-piece non-reversible jaws are included for standard external gripping applications.

Key Features

• 4-inch chuck diameter with 3-jaw self-centering scroll action for fast, repeatable workpiece clamping
• Plain back mount design allows adaptation to a wide range of lathe spindle configurations via a backing plate
• Cast iron body provides rigidity and durability under continuous lathe operation
• Axial runout rated at 0.003 inches for consistent concentricity during turning
• One-piece solid non-reversible jaws included for external workpiece gripping
• Includes chuck wrench for jaw adjustment and workpiece clamping

Compatibility

Designed as a plain back manual lathe chuck compatible with metal lathes that accept a 4-inch chuck via a shop-machined or separately sourced backing plate matched to the lathe spindle nose.

Installation Notes

A licensed machinist or qualified tool room technician should mount this chuck. Before installation, power down and lock out the lathe in accordance with applicable OSHA lockout/tagout procedures. The plain back mount requires a backing plate bored and threaded to match the lathe spindle nose before mounting the chuck. Verify axial and radial runout with a dial indicator after mounting and before returning the machine to service.