{"product_id":"k12-100-external-jaws-4-jaw-100mm-mini-lathe-chuck-set","title":"K12-100 4-Jaw 100mm Mini Lathe Chuck External Jaws Set","description":"\n\u003ch2\u003eJINSLU K12-100 External Jaws 4-Jaw Mini Lathe Chuck – 100mm\u003c\/h2\u003e\n\u003cp\u003eUpgrade your lathe setup with the \u003cstrong\u003eJINSLU K12-100 External Jaws Set\u003c\/strong\u003e — a precision-engineered 4-jaw self-centering chuck accessory designed for 100mm mini lathes. Whether you're machining square, octagonal, or irregularly shaped workpieces, this chuck delivers reliable automatic centering and fast, secure clamping every time.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e4-Jaw Self-Centering Design:\u003c\/strong\u003e Automatically centers your workpiece for consistent, accurate results across a variety of shapes — square, octagonal, and more.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExternal Jaws (Reversible):\u003c\/strong\u003e Each jaw can be used independently, giving you maximum versatility for different workpiece sizes and profiles.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e100mm Chuck Diameter:\u003c\/strong\u003e Perfectly sized for mini and benchtop lathes requiring K12-series accessories.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard K12 Connection:\u003c\/strong\u003e Uses the same connection method as ordinary 3-jaw lathe chucks — drop-in compatibility with your existing setup.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManual \/ Pneumatic Operation:\u003c\/strong\u003e Supports both manual and pneumatic power sources for flexible shop use.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCustomizable:\u003c\/strong\u003e Available with custom specifications to suit your specific machining requirements.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Quality Construction:\u003c\/strong\u003e No high-concern chemicals used in manufacturing — built for safe, long-lasting workshop performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e JINSLU\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e K12-100\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Jaws:\u003c\/strong\u003e 4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChuck Diameter:\u003c\/strong\u003e 100mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eJaw Type:\u003c\/strong\u003e External (Positive\/Reverse)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower:\u003c\/strong\u003e Manual \/ Pneumatic\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCustomization:\u003c\/strong\u003e Available\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e Made in China\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eK12-100 External Jaws – 1 Set (4 Pieces)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLooking for more workshop tools and accessories? Check out our \u003ca href=\"\/products\/leather-hole-punch-tool-diy-stitching-punch-4-5-6mm\"\u003eLeather Hole Punch Tool | DIY Stitching Punch 4\/5\/6mm\u003c\/a\u003e and the \u003ca href=\"\/products\/stainless-steel-ceramic-trimming-tool-curved-skip-knife\"\u003eStainless Steel Ceramic Trimming Tool – Curved Skip Knife\u003c\/a\u003e for your DIY and craft projects.\u003c\/p\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/eye-face-protection\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on eye and face protection\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: Is the K12-100 External Jaws Set compatible with standard lathe chucks?\u003c\/h4\u003e\n\u003cp\u003eA: Yes — the K12-100 external jaws use the same connection method as ordinary 3-jaw lathe chucks, making them straightforward to install on any K12-series compatible mini lathe without additional adapters.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can each jaw be used independently on the K12-100 4-jaw chuck?\u003c\/h4\u003e\n\u003cp\u003eA: Absolutely. The K12 series design features positive and reverse jaws where each jaw can be used separately, giving you the flexibility to handle a wide range of workpiece shapes and sizes including square and octagonal profiles.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is included in this listing?\u003c\/h4\u003e\n\u003cp\u003eA: This listing includes one complete set of K12-100 external jaws, comprising 4 individual jaw pieces (4pcs). The lathe chuck body itself is not included — these are replacement\/spare external jaws for your existing K12-100 chuck.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Is the K12-100 External Jaws Set compatible with standard lathe chucks?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes — the K12-100 external jaws use the same connection method as ordinary 3-jaw lathe chucks, making them straightforward to install on any K12-series compatible mini lathe without additional adapters.\"}}, {\"@type\": \"Question\", \"name\": \"Can each jaw be used independently on the K12-100 4-jaw chuck?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Absolutely. 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