Abbott Workholding KTTB212A Soft Lathe Chuck Jaw Serrated

Product Description

The ABBOTT WORKHOLDING PRODUCTS KTTB212A is a serrated soft lathe chuck jaw machined from 6061-T6 aluminum, designed for use in manual and CNC lathe chuck assemblies. Soft jaws allow machinists and toolroom technicians to bore custom profiles directly into the jaw face, providing a precise, repeatable grip on finished or near-finished workpieces where standard hard jaws would cause surface damage. The KTTB212A measures 5.5 inches overall length, 2 inches overall width, and 2 inches overall height, and is compatible with chucks up to 12 inches in diameter. It is sold as a set of three jaws, matching the standard 3-jaw chuck configuration common in production and job-shop turning operations.

These jaws are suited for use in metalworking shops, production turning cells, and toolroom environments where workholding flexibility and part protection are priorities. The serrated jaw interface ensures positive engagement with the chuck scroll, maintaining accurate jaw positioning during setup and reboring. Typical applications include holding aluminum extrusions, precision-turned components, castings, and other workpieces requiring custom jaw profiles. Installation and fitment are performed by machinists and toolroom technicians as part of routine chuck setup or workholding changeover.

Key Features

• Serrated jaw interface for secure, repeatable seating on the chuck scroll
• 6061-T6 aluminum construction - machinable and lightweight for easy custom boring
• Square jaw shape with 5.5 inch overall length for generous reboring stock
• Compatible with chucks up to 12 inches in diameter
• 1.1811 inch distance between mount hole centers; 0.6299 inch fastener size
• Slot width of 0.827 inches for precise chuck scroll engagement
• Sold as a 3-jaw set matching standard lathe chuck configurations

Compatibility

Designed for use with lathe chucks up to 12 inches in diameter that accept serrated soft jaws with a 1.1811 inch mount hole center distance and a 0.6299 inch fastener size.

Installation Notes

Soft jaw installation and boring should be performed by a qualified machinist familiar with lathe chuck setup procedures. Before installing or removing chuck jaws, ensure the lathe is powered off and the spindle is fully stopped. Jaws must be bored in place on the chuck under the same clamping pressure used during production to ensure concentricity. Follow the machine tool manufacturer guidelines and applicable shop safety protocols when working with chuck assemblies.