{"product_id":"value-collection-230-4374-5c-step-collet-steel","title":"Value Collection 230-4374 5C Step Collet Steel","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 230-4374 is a 5C step collet machined from steel, designed for use in lathes and collet-closer systems that accept the standard 5C collet format. Step collets are used when workpieces exceed the bore capacity of a standard 5C collet, allowing the collet to grip on a step or shoulder rather than along a full bore. The head measures 4 inches in diameter with a 1-1\/8 inch head thickness. The pilot hole accepts stock up to 0.3125 inches (5\/16 inch). Internal thread size is 1.041 inches at 24 threads per inch, and the external thread size is 1.242 inches at 20 threads per inch. This collet is suited for machinists and toolroom technicians working in production or job-shop environments.\u003c\/p\u003e\n\u003cp\u003eThis collet is intended for use in manual and CNC lathes, indexers, spin fixtures, and other workholding equipment configured for the 5C collet standard. Step collets are a common solution in production machining when round, hex, or square bar stock or pre-turned workpieces must be held by a shoulder or step rather than along the full shank length. Installation is performed by qualified machinists or toolroom personnel on equipment already set up for 5C collet tooling.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eStep collet design accommodates workpieces gripped by shoulder rather than full-bore contact\u003c\/li\u003e\n  \u003cli\u003eSteel construction for durability in production machining environments\u003c\/li\u003e\n  \u003cli\u003e4 inch head diameter fits standard 5C collet-closer equipment\u003c\/li\u003e\n  \u003cli\u003ePilot hole size of 0.3125 inches (5\/16 inch) for workpiece alignment\u003c\/li\u003e\n  \u003cli\u003eInternal thread: 1.041 inches at 24 TPI; external thread: 1.242 inches at 20 TPI\u003c\/li\u003e\n  \u003cli\u003eHead thickness of 1-1\/8 inch for proper seating in compatible closers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or production tooling component for lathes and workholding systems configured for the standard 5C collet format.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by a qualified machinist or toolroom technician. The spindle or collet-closer must be fully powered down and brought to a complete stop before inserting or removing a collet. Inspect the collet bore, threads, and seating surface for damage or debris before installation. Do not exceed the rated pilot hole capacity, as overloading a step collet can cause workpiece slip or collet damage.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCollet Type\u003c\/strong\u003e: Step\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Diameter\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Thickness\u003c\/strong\u003e: 1-1\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePilot Hole Size\u003c\/strong\u003e: 5\/16 inch (0.3125 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInternal Thread Size\u003c\/strong\u003e: 1.041 inches - 24 TPI\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExternal Thread Size\u003c\/strong\u003e: 1.242 inches - 20 TPI\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 4.54 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 27112800\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: 230-4374\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51710848205106,"sku":"230-4374","price":94.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/3746dcd85b4c553d0951605081d8b0dd.jpg?v=1788471343","url":"https:\/\/voomisupply.com\/products\/value-collection-230-4374-5c-step-collet-steel","provider":"Voomi Supply","version":"1.0","type":"link"}