Abbott Workholding Products KTT12P Soft Lathe Chuck Jaw

Product Description

The ABBOTT WORKHOLDING PRODUCTS KTT12P is a soft lathe chuck jaw designed for precision turning and boring operations on CNC and manual lathes. Machined from 6061 aluminum, this serrated-interface jaw accepts re-machining to match specific workpiece geometries, making it a standard choice for production setups where repeatable, custom gripping is required. The jaw measures 12 inches in overall diameter and 2 inches in overall height. Fastener size is 0.5512 inches, and the distance between mount hole centers is 1.1811 inches. The set consists of 3 jaws. Machinists and CNC setup technicians install these jaws when a standard hard jaw cannot hold an irregular or finished workpiece without marring the surface.

This jaw is suited for use in metalworking shops, job shops, and production machining environments. The round jaw shape and serrated interface are matched to 12-inch chuck bodies requiring a full-diameter soft jaw replacement. The serrated mount interface provides positive engagement with the chuck master jaw, maintaining jaw position under interrupted cuts and varying radial loads. Typical applications include chucking castings, turned blanks, and near-net-shape parts where a bored soft jaw is necessary for accurate, repeatable location.

Key Features

• Serrated jaw interface for positive, repeatable seating on compatible master jaws
• 6061 aluminum construction allows fast, easy re-boring to custom workpiece diameters
• Round jaw shape sized to 12-inch chuck diameter
• Slot width of 0.7090 inches and groove width of 0.7087 inches for precise master jaw fit
• Mount hole center distance of 1.1811 inches with 0.5512-inch fastener size
• Set of 3 jaws for complete chuck replacement

Compatibility

Designed as an OEM-style replacement soft jaw set for 12-inch lathe chuck bodies with serrated master jaw interfaces. Compatible chuck diameter is 12 inches (minimum and maximum). Verify slot width, groove width, and mount hole spacing against the existing chuck specifications before installation.

Installation Notes

Installation is performed by a qualified machinist or CNC setup technician. Power down and lock out the lathe spindle drive before removing or installing chuck jaws. Torque fasteners to the chuck manufacturer's specification using the appropriate hex key or socket. After mounting, bore the soft jaws to the required grip diameter in place on the chuck to ensure concentricity before placing parts in production.