{"product_id":"abbott-workholding-products-kw4a-soft-lathe-chuck-jaw","title":"Abbott Workholding Products KW4A Soft Lathe Chuck Jaw","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ABBOTT WORKHOLDING PRODUCTS KW4A is a soft lathe chuck jaw designed for use in serrated-interface lathe chucks. Machined from 6061-T6 aluminum, this jaw offers a lightweight, machinable body that allows machinists to bore custom profiles for workholding applications. The square jaw shape and serrated interface provide positive, repeatable seating against the chuck master jaw. Compatible with chucks up to 4 inches in diameter, the KW4A has an overall length of 2 inches and an overall width of 1 inch. It is sold and packaged as a single jaw. Mounting hole centers are spaced 0.5512 inches apart, and the fastener size is 0.315 inches.\u003c\/p\u003e\n\u003cp\u003eThe KW4A is used in manual and CNC lathe setups where a soft jaw is required for gripping custom, delicate, or irregularly shaped workpieces. Because it is aluminum, the jaw can be bored or turned to a specific inside diameter directly on the machine, producing a precision fit to the part being held. This is a common practice in job shop and production machining environments when gripping thin-walled parts, castings, or finished components that cannot sustain the marring risk of hardened jaws. The part is suited for light to medium turning operations on small to mid-size lathes using 4-inch chuck bodies.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSerrated jaw interface for positive, repeatable engagement with master jaws\u003c\/li\u003e\n  \u003cli\u003e6061-T6 aluminum construction for easy on-machine boring and light weight\u003c\/li\u003e\n  \u003cli\u003eSquare jaw shape compatible with standard 3-jaw chuck configurations\u003c\/li\u003e\n  \u003cli\u003eMounting hole center distance of 0.5512 inches for precise bolt-down alignment\u003c\/li\u003e\n  \u003cli\u003eSlot width of 0.394 inches and groove width of 0.394 inches for standard serration fitment\u003c\/li\u003e\n  \u003cli\u003eDesigned for chucks up to 4 inches maximum compatible diameter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a serrated soft jaw replacement or spare for 3-jaw lathe chucks with a maximum compatible chuck diameter of 4 inches and a 0.5512-inch mounting hole center distance. Verify serration pitch and fastener size against the chuck manufacturer specifications before installation.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by a machinist or lathe operator. Power down and lock out the lathe spindle before removing or installing chuck jaws. Use the correct fastener size of 0.315 inches as specified, and torque evenly to avoid jaw distortion. After mounting, bore the soft jaw in place on the chuck to achieve a true running grip surface before use.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eJaw Interface Type\u003c\/strong\u003e: Serrated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eJaw Shape\u003c\/strong\u003e: Square\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Jaws\u003c\/strong\u003e: 3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Compatible Chuck Diameter\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Width\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Height\u003c\/strong\u003e: 1.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDistance Between Mount Hole Centers\u003c\/strong\u003e: 0.5512 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFastener Size\u003c\/strong\u003e: 0.315 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSlot Width\u003c\/strong\u003e: 0.394 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGroove Width\u003c\/strong\u003e: 0.394 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Aluminum\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: 6061-T6\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.75 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: ABBOTT WORKHOLDING PRODUCTS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: KW4A\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ABBOTT WORKHOLDING","offers":[{"title":"Default Title","offer_id":67910899794226,"sku":"KW4A","price":73.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/fda62f93732bd645d08874619b44962a.jpg?v=1791201238","url":"https:\/\/voomisupply.com\/products\/abbott-workholding-products-kw4a-soft-lathe-chuck-jaw","provider":"Voomi Supply","version":"1.0","type":"link"}