Gibraltar 290-1182 Lathe Chuck Key 8 Inch Self-ejecting

Product Description

The GIBRALTAR 290-1182 is a lathe chuck key designed for use with 8-inch chuck diameter lathes. It features a self-ejecting mechanism that automatically retracts the key when released, reducing the risk of the key remaining in the chuck during operation. The body measures 4.53 inches in length, and the actual key square size is 0.472 inches. Machinists and maintenance technicians install this key when mounting or removing workpieces in lathe chucks. It is built for reliable engagement with standard square-drive chuck sockets found on common lathe setups.

This chuck key is suited for use in machine shops, manufacturing facilities, and maintenance environments where 3-jaw lathe chucks are in regular use. The 8-inch chuck diameter compatibility makes it appropriate for mid-size lathe equipment used in both production and toolroom settings. The self-ejecting feature is particularly valued in high-cycle environments where operator safety and workflow speed matter.

Key Features

• Self-ejecting design automatically retracts key on release, reducing operator risk
• Compatible with 8-inch diameter lathe chucks
• Fits 3-jaw chuck configurations
• 4.53-inch body length provides adequate leverage for chuck tightening
• 0.472-inch actual key square size for precise socket engagement

Compatibility

Designed for use with 3-jaw lathe chucks having an 8-inch chuck diameter compatibility.

Installation Notes

This chuck key is installed and operated by machinists and lathe operators. Always ensure the lathe is powered off and the spindle is fully stopped before inserting or removing the chuck key. Never leave a chuck key unattended in the chuck socket. The self-ejecting mechanism should be inspected periodically to confirm it functions correctly before each use.