{"product_id":"value-collection-1230-4239-5c-round-collet-21mm","title":"Value Collection 1230-4239 5C Round Collet 21mm","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 1230-4239 is a 5C round collet machined from steel for use in 5C-compatible spindles and collet chucks. It features a 21.00 mm collet size, a total indicator runout (TIR) of 0.015 mm for consistent concentricity, and standard 5C threading dimensions. This collet is designed to grip round workpieces securely during turning, milling, or grinding operations. Machinists and tool room technicians install this type of collet in manual or CNC lathes, indexers, and collet closers where repeatable, accurate workholding is required.\u003c\/p\u003e\n\u003cp\u003eThis 5C round collet is suited for shop environments running 5C-compatible workholding equipment. Typical applications include production turning on engine lathes, part holding in rotary indexers, and secondary operations on screw machine parts. The steel construction provides durability under repeated clamping cycles. It is appropriate for both job shop and production settings where round stock or pre-turned blanks require secure, repeatable fixturing.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e21.00 mm collet size for round workpiece gripping\u003c\/li\u003e\n  \u003cli\u003eTIR of 0.015 mm for accurate concentricity\u003c\/li\u003e\n  \u003cli\u003eInternal thread size: 1.041 inches-24\u003c\/li\u003e\n  \u003cli\u003eExternal thread size: 1.242 inches-20\u003c\/li\u003e\n  \u003cli\u003eSteel construction for wear resistance and durability\u003c\/li\u003e\n  \u003cli\u003eStandard 5C form factor compatible with 5C spindles and closers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or direct-fit collet for 5C-compatible spindles, collet chucks, collet closers, and rotary indexers accepting the standard 5C collet form factor.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by qualified machinists or tool room personnel. Ensure the spindle or collet closer is fully powered down and de-energized before inserting or removing the collet. Clean the collet seat and collet body of chips and debris before installation to protect TIR performance. Inspect threads on both the collet and the closer or chuck for damage before tightening.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCollet Type\u003c\/strong\u003e: Round\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCollet Size\u003c\/strong\u003e: 21.00 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTIR\u003c\/strong\u003e: 0.015 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInternal Thread Size\u003c\/strong\u003e: 1.041 inches-24\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExternal Thread Size\u003c\/strong\u003e: 1.242 inches-20\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.5 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: VALUE COLLECTION\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 1230-4239\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51711886098738,"sku":"1230-4239","price":40.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/bd1791f4d28f1b22aedb521dc95781f2.jpg?v=1788480951","url":"https:\/\/voomisupply.com\/products\/value-collection-1230-4239-5c-round-collet-21mm","provider":"Voomi Supply","version":"1.0","type":"link"}