{"product_id":"value-collection-429-4006-6-inch-4-jaw-lathe-chuck","title":"Value Collection 429-4006 6 Inch 4 Jaw Lathe Chuck","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION 429-4006 is a 4-jaw independent manual lathe chuck designed for precision workholding on metalworking lathes. With a 6-inch diameter body and plain back mount, it accommodates a wide range of workpiece shapes that self-centering chucks cannot grip reliably. Each jaw moves independently, allowing the operator to dial in exact concentricity or deliberately offset a part for eccentric turning. The cast iron body measures 2.5625 inches in length and weighs 23 pounds. Solid reversible jaws and a T-wrench are included. This chuck is installed by machinists and toolroom operators on manual engine lathes.\u003c\/p\u003e\u003cp\u003eThe 429-4006 is suited for job shop, maintenance, and production environments where a mix of round, square, hex, and irregular stock is common. The plain back mount requires a lathe-specific adapter plate or direct machining to match the spindle nose, making it appropriate for shops that fit chucks to their exact machine configuration. The through-hole diameter of 1.765 inches (1-49\/64) accommodates bar stock fed through the spindle. The one-piece reversible jaw design provides flexibility for both internal and external gripping without purchasing additional jaw sets.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e4-jaw independent design allows individual jaw adjustment for precise centering or eccentric setups\u003c\/li\u003e\n\u003cli\u003eSolid reversible jaws support both internal and external workholding\u003c\/li\u003e\n\u003cli\u003ePlain back mount enables custom fitting to a wide range of lathe spindle configurations\u003c\/li\u003e\n\u003cli\u003eCast iron body construction provides rigidity and vibration damping during cuts\u003c\/li\u003e\n\u003cli\u003eThrough-hole diameter of 1.765 inches allows bar stock to pass through the spindle\u003c\/li\u003e\n\u003cli\u003eT-wrench included for jaw adjustment at the machine\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a plain back manual lathe chuck for use on engine lathes requiring a 6-inch chuck with an independently customized spindle adapter. No specific machine model compatibility was provided; verify spindle nose type and required adapter plate before installation.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist familiar with lathe spindle nose configurations. Power down and lock out the lathe before mounting or removing the chuck. The plain back must be bored or fitted to a purpose-made adapter plate matched to the lathe spindle nose to ensure proper seating and runout. At 23 pounds, use appropriate lifting technique or a mechanical aid when handling the chuck during mounting.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChuck Diameter\u003c\/strong\u003e: 6 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Jaws\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChuck Type\u003c\/strong\u003e: Independent\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMount Type\u003c\/strong\u003e: Plain Back\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Material\u003c\/strong\u003e: Cast Iron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Length\u003c\/strong\u003e: 2.5625 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJaw Height\u003c\/strong\u003e: 1.1094 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThrough-Hole Diameter\u003c\/strong\u003e: 1.765 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJaw Pieces\u003c\/strong\u003e: One-Piece\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReversible Jaws\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContents\u003c\/strong\u003e: Solid Reversible Jaws, T-Wrench\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 23 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: 429-4006\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51695497675058,"sku":"429-4006","price":380.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/985ef23758abab1e0f69306b705fe537_955a9ac0-9b32-4d76-8146-c8a388fa6947.jpg?v=1788335795","url":"https:\/\/voomisupply.com\/products\/value-collection-429-4006-6-inch-4-jaw-lathe-chuck","provider":"Voomi Supply","version":"1.0","type":"link"}