{"product_id":"mt4-face-mill-arbor-40mm-pilot-diameter-m16-drawbar-thread","title":"MT4 Face Mill Arbor 40mm Pilot Diameter - M16 Drawbar Thread","description":"\u003cp\u003eThe MT4 Face Mill Arbor 40mm (FMMT4M40 \/ MS4-40) is precision-machined for securely mounting large indexable face mills, shell end mills, and slotting cutters with a 40mm bore onto milling machines equipped with a Morse Taper No. 4 (MT4) spindle. Crafted from premium hardened alloy steel, this arbor provides maximum structural rigidity and superior torque transmission required for smooth, heavy-duty face milling operations.\u003c\/p\u003e\n\u003cp\u003eFeaturing a 40mm pilot mounting diameter and an M16 drawbar thread, this toolholder securely fits standard MT4 milling machine spindles to maintain low runout, high stability, and consistent machining accuracy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHardened \u0026amp; Ground Construction: Precision ground on all critical contact surfaces for enhanced rigidity, high wear resistance, and minimal total indicator reading (TIR).\u003c\/li\u003e\n\u003cli\u003eMorse Taper No. 4 Shank: Standard MT4 (MS4) shank engineered for a secure, high-stability fit in MT4 milling machine spindles.\u003c\/li\u003e\n\u003cli\u003eM16 Drawbar Thread: Threaded rear end accepts standard M16 drawbars for secure pull-back retention during heavy cuts.\u003c\/li\u003e\n\u003cli\u003e40mm Pilot Diameter: Standard 40mm spigot pilot diameter compatible with a broad range of 40mm bore face milling heads and shell cutters.\u003c\/li\u003e\n\u003cli\u003ePositive Drive Engagement: Equipped with dual drive keys and a heavy-duty center retaining screw assembly to prevent cutter slippage under high rotational loads.\u003c\/li\u003e\n\u003cli\u003ePermanent Engraving: Clearly marked with \"MS4-40\" on the main collar for easy tool identification.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Specifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eShank Taper: MT4 (Morse Taper 4 \/ MS4)\u003c\/li\u003e\n\u003cli\u003eArbor \/ Pilot Diameter: 40 mm\u003c\/li\u003e\n\u003cli\u003eDrawbar Thread: M16 x 2.0\u003c\/li\u003e\n\u003cli\u003eModel Code: FMMT4M40 \/ MS4-40\u003c\/li\u003e\n\u003cli\u003eMaterial: Hardened Alloy Steel\u003c\/li\u003e\n\u003cli\u003eApplication: Face Milling \u0026amp; Shell Milling on MT4 Spindle Machines\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Twin Eagle","offers":[{"title":"Default Title","offer_id":53075375063327,"sku":"FMMT4M40","price":84.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0050\/2484\/1799\/files\/mt4-face-mill-arbor-40mm-pilot-diameter-m16-drawbar-thread-5861550.jpg?v=1792516214","url":"https:\/\/twineagleimports.com\/products\/mt4-face-mill-arbor-40mm-pilot-diameter-m16-drawbar-thread","provider":"Twin Eagle Imports ","version":"1.0","type":"link"}