Abbott Workholding KTT8S2 Serrated Top Jaw Set of 3 for Lathe Chuck

This is a matched set of three Abbott Workholding KTT8S2 serrated top jaws, supplied new (other condition) — unused but with corrosion damage. The part number decodes as follows: KTT = Abbott's Key-Type Top jaw series, 8 = chuck size designation (8-inch chuck), S = serrated (sawtooth) gripping face, 2 = two mounting bolt holes per jaw; the serrated face pattern visible in the photos is a standard 1.5mm pitch 90° serration used to engage with serrated master jaws on 3-jaw scroll chucks. Each jaw features a precision-ground serrated top surface for secure clamping engagement with the master jaw body, two through-holes for mounting bolts, and a pointed/angled outer gripping profile suited for OD and ID workholding of round and irregular stock. The steel construction shows a matte oxide finish on the body faces with bright-ground serrations, consistent with Abbott's standard plain steel (non-coated) hard jaw specification. These jaws are designed as replaceable top jaws for 8-inch 3-jaw lathe chucks using Abbott-compatible serrated master jaws, and are sold as a complete set of three matching jaws as required for a single chuck installation.

Product Specifications