Abbott Workholding Products KTTB212A1 Soft Lathe Chuck Jaw

Product Description

The ABBOTT WORKHOLDING PRODUCTS KTTB212A1 is a soft lathe chuck jaw with a serrated interface, designed for use in manual and CNC lathe operations requiring a machinable jaw that can be bored or turned to match a specific workpiece profile. Machined from 6061-T6 aluminum, it offers a lightweight alternative to steel jaws while maintaining adequate rigidity for light to medium turning applications. The jaw measures 2 inches in overall width, 3 inches in overall height, and 5.5 inches in overall length. It ships as a set of 3 jaws. Machinists and lathe operators install these jaws when workholding requires a custom grip profile or when protecting finished surfaces from jaw marks.

This jaw is suited for use on lathes with a maximum compatible chuck diameter of 12 inches. The serrated bottom interface engages a matching serrated top chuck body, providing a positive, repeatable seating position that resists axial movement during cutting. A groove width of 0.8268 inches and a mount hole center distance of 1.1811 inches are key fitment dimensions to verify against the chuck body before ordering. Typical applications include prototype work, short-run production, and any situation where standard hardened jaws cannot be modified to suit an irregular or delicate workpiece geometry.

Key Features

• Serrated jaw interface for positive, repeatable seating against matching chuck body serrations
• 6061-T6 aluminum construction - machinable for custom bore profiles while keeping jaw weight low
• Square jaw shape with 2 inches overall width and 3 inches overall height for consistent contact area
• Mount hole center distance of 1.1811 inches and fastener size of 0.6299 inches for precise chuck alignment
• Groove width of 0.8268 inches matches standard serrated chuck top-tooling geometry
• Sold as a set of 3 jaws - complete replacement set for a single chuck position grouping

Compatibility

Designed for use on lathe chucks with a maximum compatible chuck diameter of 12 inches and a serrated top interface. Key fitment dimensions include a mount hole center distance of 1.1811 inches, a fastener size of 0.6299 inches, and a groove width of 0.8268 inches. Verify all mating dimensions against the chuck body specification before installation.

Installation Notes

Installation is typically performed by a machinist or qualified lathe operator. Before removing or installing chuck jaws, power down the lathe completely and confirm the spindle has come to a full stop. Use the correct fastener size and torque pattern specified by the chuck manufacturer - do not overtighten, as aluminum jaws can deform at the mounting interface. After installation, confirm jaw runout with an indicator before initiating a cut.