{"product_id":"four-jaw-chuck-for-lathe-db-250","title":"Proxxon 4-Jaw Chuck for DB 250 Lathe — Reversible Jaws, 0–35mm Inside \/ 14–67mm Outside (No. 27024)","description":"\u003cp\u003eHold what a 3-jaw chuck can't. The Proxxon 4-jaw chuck for the DB 250 is designed for clamping asymmetrical, rectangular, and irregular workpieces that a self-centering 3-jaw chuck cannot grip securely. Each jaw adjusts independently, giving you precise control over centering and the ability to hold square stock, off-center workpieces, and non-round profiles. The reversible jaws extend the clamping range from 0–35mm inside to 14–67mm outside, and the chuck mounts directly to the DB 250 headstock spindle via M16×1 thread — no adapter required.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible machine:\u003c\/strong\u003e Proxxon DB 250 Wood Lathe\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJaw type:\u003c\/strong\u003e 4-jaw independent (each jaw adjusts separately)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJaw configuration:\u003c\/strong\u003e Reversible — use in standard or reversed position\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside clamping range:\u003c\/strong\u003e 0–1-3\/8\" (0–35mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside clamping range:\u003c\/strong\u003e 35\/64\"–2-5\/8\" (14–67mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpindle thread:\u003c\/strong\u003e M16 × 1 — direct mount to DB 250 headstock\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 59g\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart No.:\u003c\/strong\u003e 27024\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhen Do You Need a 4-Jaw Chuck?\u003c\/h2\u003e\n\u003cp\u003eA 4-jaw independent chuck is the right choice when:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eYour workpiece is \u003cstrong\u003esquare, rectangular, or asymmetrical\u003c\/strong\u003e — shapes a 3-jaw self-centering chuck can't grip\u003c\/li\u003e\n\u003cli\u003eYou need to \u003cstrong\u003eturn off-center\u003c\/strong\u003e — each jaw adjusts independently for deliberate eccentric positioning\u003c\/li\u003e\n\u003cli\u003eYou need \u003cstrong\u003emaximum grip security\u003c\/strong\u003e on irregular stock where a self-centering chuck might slip\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs this a self-centering or independent chuck?\u003c\/strong\u003e\u003cbr\u003eIndependent — each of the four jaws adjusts separately. This gives you more flexibility than a self-centering chuck but requires manual centering of the workpiece using a dial indicator or by eye.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit the DB 250 directly?\u003c\/strong\u003e\u003cbr\u003eYes — the chuck threads directly onto the DB 250 headstock spindle (M16 × 1 thread) with no adapter required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use this for bowl turning?\u003c\/strong\u003e\u003cbr\u003eYes — the outside clamping range up to 67mm and the ability to hold irregular blanks makes this suitable for small bowl and faceplate-style turning on the DB 250.\u003c\/p\u003e\n\n\u003ch2\u003eWorks Well With\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/proxxon-5-piece-wood-turning-tool-set-tube-flat-pointed-anvil-finishing-chisels-in-wooden-box-no-27023\"\u003eProxxon 5-Piece Wood Turning Tool Set (No. 27023)\u003c\/a\u003e — turning chisels for the DB 250\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/proxxon-drill-chuck-with-sliding-sleeve-for-db-250-tailstock-5mm-13-64-capacity-no-27028\"\u003eProxxon Drill Chuck for DB 250 Tailstock — 5mm Capacity (No. 27028)\u003c\/a\u003e — tailstock drill chuck for boring operations\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eReturns can only be accepted for unused product in its original packaging. A copy of the original packing slip or invoice is required. For warranty claims please call 1-877-776-9966. Please see our return and refund policy \u003ca href=\"\/pages\/refund-policy\" target=\"_blank\" rel=\"noopener noreferrer\"\u003ehere\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cspan class=\"js-reveal\" data-reveal-target=\".js-reveal-container\"\u003eCalifornia Residents Prop 65 Information\u003c\/span\u003e\n\u003cdiv class=\"js-reveal-container\" data-reveal-mode=\"slide\"\u003e\n\u003cbr\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/1643\/2529\/files\/exclamation-mark-24144_large.png?v=1511288737\" alt=\"\" width=\"16\" height=\"14\" border=\"0\" align=\"left\" style=\"margin: 6px 6px 0 0;\"\u003eWARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to \u003ca href=\"https:\/\/www.p65warnings.ca.gov\/\" target=\"_blank\" rel=\"noopener noreferrer\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e.\u003c\/div\u003e","brand":"Proxxon","offers":[{"title":"Default Title","offer_id":51230005133536,"sku":"27024","price":54.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0786\/3943\/1904\/files\/27024_3d593fd6-8b2c-4af3-bd96-021e6c6f6117.jpg?v=1774616284","url":"https:\/\/protoolhaus.com\/products\/four-jaw-chuck-for-lathe-db-250","provider":"Pro Tool Haus","version":"1.0","type":"link"}