{"product_id":"top-tool-325mm-3-jaw-camlock-size-8-two-piece-jaws-clamping-11p5-320mm-short-taper","title":"TOP-TOOL 325D8, 325mm \/ 12-Inch 3-Jaw Self-Centering Lathe Chuck, Form D Short-Taper Camlock, Clamping Range 11.5–320 mm (0.45–12.60 in), Two-Piece Jaws (Master + Reversible Top Jaws), Pre-Mounted Set, T-Key, Direct Mount (No Backing Plate)","description":"\u003ch2\u003eProfessional 325D8 — 325mm \/ 12.80-Inch 3-Jaw Self-Centering Chuck, Form D Short-Taper Camlock\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003e325D8\u003c\/strong\u003e is built for \u003cstrong\u003eshort-taper lathe spindles\u003c\/strong\u003e that use \u003cstrong\u003eForm D (camlock) retention\u003c\/strong\u003e. It mounts \u003cstrong\u003edirectly on the spindle nose\u003c\/strong\u003e with cam pins and studs; \u003cstrong\u003eno separate adapter flange\u003c\/strong\u003e is required when your spindle matches this interface. Short taper reference angle \u003cstrong\u003e7°7′30″\u003c\/strong\u003e. Overall clamping envelope \u003cstrong\u003e11.5–320 mm (0.45–12.60 in)\u003c\/strong\u003e (same jaw geometry class as our plain-back models of the same diameter class).\u003c\/p\u003e\n\n\u003ch3\u003ePremium Materials \u0026amp; Hardening\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003cth\u003eComponent\u003c\/th\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003cth\u003eHardness (HRC)\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eBody\u003c\/td\u003e\n\u003ctd\u003eHT300 Cast Iron\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eJaws\u003c\/td\u003e\n\u003ctd\u003eAISI 1045 Carbon Steel\u003c\/td\u003e\n\u003ctd\u003e52–58\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eScroll Plate\u003c\/td\u003e\n\u003ctd\u003eAISI 5140 Alloy Steel\u003c\/td\u003e\n\u003ctd\u003e43–48\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eBevel Gears\u003c\/td\u003e\n\u003ctd\u003eAISI 5140 Alloy Steel\u003c\/td\u003e\n\u003ctd\u003e45–50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eClamping ranges\u003c\/h3\u003e\n\u003cp\u003eOutside clamping with solid outside jaws (standard setup): 11.5–145 mm on the outside diameter.\u003c\/p\u003e\n\u003cp\u003eInside support \/ expanding with the same outside jaws: 95–320 mm internal gripping.\u003c\/p\u003e\n\u003cp\u003eOutside clamping with solid inside (reverse) jaws: 110–320 mm for large-diameter OD work.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSummary:\u003c\/strong\u003e overall envelope \u003cstrong\u003e11.5–320 mm (0.45–12.60 in)\u003c\/strong\u003e depending on jaw configuration.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eForm D Camlock:\u003c\/strong\u003e Studs and camlock ring geometry for quick, repeatable spindle mounting.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDirect Mount:\u003c\/strong\u003e The \u003cstrong\u003e325D8\u003c\/strong\u003e interface—no backing plate when the spindle nose matches.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeavy-Duty HT300 Cast Iron\u003c\/strong\u003e body; hardened scroll and gears (AISI 5140).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHardened Jaws (HRC 52–58)\u003c\/strong\u003e (AISI 1045).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQC:\u003c\/strong\u003e Repeatability \u003cstrong\u003e≤0.05 mm (0.002\")\u003c\/strong\u003e per factory test-bar procedure.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTwo-Piece Jaw System:\u003c\/strong\u003e Master jaws with \u003cstrong\u003ereversible top jaws\u003c\/strong\u003e pre-mounted for OD\/ID setups. \u003cstrong\u003eNo second full jaw kit\u003c\/strong\u003e is included (packaging differs from solid-jaw models).\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eT-Key Included.\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eJaw type\u003c\/h3\u003e\n\u003cp\u003eThis listing uses \u003cstrong\u003etwo-piece jaws\u003c\/strong\u003e. For \u003cstrong\u003esolid outside\/inside jaw sets\u003c\/strong\u003e, see our other listings.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e325D8\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eD (chuck body diameter)\u003c\/td\u003e\n\u003ctd\u003e325 mm (12.80 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eD1 (short taper large end)\u003c\/td\u003e\n\u003ctd\u003e139.719 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eD2 (stud \/ bolt spacing)\u003c\/td\u003e\n\u003ctd\u003e171.4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eD3 (chuck through hole)\u003c\/td\u003e\n\u003ctd\u003e102 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eH1 (body thickness, factory table)\u003c\/td\u003e\n\u003ctd\u003e103.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eh \/ h1 (mounting recess depths)\u003c\/td\u003e\n\u003ctd\u003e18 mm \/ 14 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eH (overall with jaws, reference)\u003c\/td\u003e\n\u003ctd\u003e155 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eStuds \/ bolts (z–d)\u003c\/td\u003e\n\u003ctd\u003e6× M20 × 1.5\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eNet weight\u003c\/td\u003e\n\u003ctd\u003e51.0 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eYou must verify that your lathe spindle nose \u003cstrong\u003eshort taper large-end size\u003c\/strong\u003e matches \u003cstrong\u003eD1\u003c\/strong\u003e, and that the spindle is \u003cstrong\u003eForm D (camlock retention)\u003c\/strong\u003e. Also confirm the \u003cstrong\u003estud pattern\u003c\/strong\u003e (z–d) matches your machine. Machine swing must clear chuck body diameter \u003cstrong\u003eD\u003c\/strong\u003e and fully opened jaws.\u003c\/p\u003e\n\n\u003ch3\u003eMaintenance\u003c\/h3\u003e\n\u003cp\u003eClean and lubricate the scroll and gears with \u003cstrong\u003emolybdenum disulfide (MoS\u003csub\u003e2\u003c\/sub\u003e) grease\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eSafety\u003c\/h3\u003e\n\u003cp\u003eNever run with the chuck key engaged. Respect rated speeds for diameter and workpiece balance.\u003c\/p\u003e","brand":"TOP-TOOL","offers":[{"title":"Default Title","offer_id":46879016681657,"sku":null,"price":434.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/9542\/0857\/files\/K11_D5.png?v=1776043088","url":"https:\/\/toptool.ca\/products\/top-tool-325mm-3-jaw-camlock-size-8-two-piece-jaws-clamping-11p5-320mm-short-taper","provider":"TOP-TOOL","version":"1.0","type":"link"}