{"product_id":"value-collection-429-3086-manual-lathe-chuck-8-in-3-jaw-d1-6","title":"Value Collection 429-3086 Manual Lathe Chuck 8 in 3 Jaw D1-6","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION 429-3086 is a manual, self-centering 3-jaw lathe chuck designed for metal turning operations on engine lathes and similar manual machine tools. The chuck measures 8 inches in diameter and features a D1-6 direct mount spindle interface, making it compatible with lathes equipped with a D1-6 camlock spindle nose. The body is cast iron construction. A 1.97-inch (50 mm) through-hole allows bar stock to pass through the spindle. Reversible two-piece jaws extend the holding range for both outside-diameter and inside-diameter clamping. This chuck is installed and serviced by machinists and machine tool technicians in job shop, production, and maintenance environments.\u003c\/p\u003e\u003cp\u003eThis chuck suits general-purpose turning work on manual engine lathes with a D1-6 spindle nose. The self-centering scroll mechanism grips round and hex workpieces simultaneously across all three jaws with a single wrench input, reducing setup time for repetitive turning operations. The reversible jaw design accommodates a wider range of workpiece diameters without requiring separate jaw sets. Typical applications include shaft turning, facing, and boring operations in machine shops, toolrooms, and industrial maintenance facilities.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e8-inch chuck diameter provides a substantial gripping envelope for medium to large workpieces\u003c\/li\u003e\n\u003cli\u003eSelf-centering 3-jaw scroll design grips round and hex stock simultaneously for fast, repeatable setup\u003c\/li\u003e\n\u003cli\u003eD1-6 direct mount interface fits lathes with a D1-6 camlock spindle nose without an adapter plate\u003c\/li\u003e\n\u003cli\u003e1.97-inch (50 mm) through-hole diameter allows bar stock feeding through the spindle\u003c\/li\u003e\n\u003cli\u003eReversible two-piece jaws support both OD and ID clamping configurations\u003c\/li\u003e\n\u003cli\u003eCast iron body provides rigidity and vibration damping during turning operations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use on manual engine lathes equipped with a D1-6 camlock spindle nose. Direct mount configuration requires no intermediate adapter.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or machine tool technician. Before mounting or removing the chuck, disconnect and lock out power to the lathe in accordance with applicable OSHA lockout\/tagout procedures. Clean the spindle nose camlock studs and chuck mounting face thoroughly before seating the chuck; debris on the mating surfaces affects runout. Torque camlock pins to the lathe manufacturer's specification using the correct chuck wrench — never use a pipe extension on the chuck wrench.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChuck Diameter\u003c\/strong\u003e: 8 inches (203.20 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Jaws\u003c\/strong\u003e: 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChuck Type\u003c\/strong\u003e: Self-Centering\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMount Type\u003c\/strong\u003e: Direct Mount\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect Mounting Size\u003c\/strong\u003e: D1-6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThrough-Hole Diameter\u003c\/strong\u003e: 1.97 inches (50.00 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJaw Configuration\u003c\/strong\u003e: Two-Piece, Reversible\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Material\u003c\/strong\u003e: Cast Iron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 46 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: VALUE COLLECTION\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 429-3086\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51704720556338,"sku":"429-3086","price":621.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/b93aa190fcd5d5a77bd7cd63fed05e21.jpg?v=1788424595","url":"https:\/\/voomisupply.com\/products\/value-collection-429-3086-manual-lathe-chuck-8-in-3-jaw-d1-6","provider":"Voomi Supply","version":"1.0","type":"link"}