{"product_id":"mt3-lathe-alignment-test-bar-335mm-en31-alloy-steel","title":"🔧 3MT Lathe Alignment Test Bar MT3 | 335mm EN31 Alloy Steel Precision Tailstock Alignment Tool","description":"\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eMT3 Lathe Alignment Test Bar\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a precision-engineered inspection and alignment tool designed for accurately checking and correcting lathe tailstock and spindle alignment. Manufactured from premium \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eEN31 alloy steel\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this hardened and precision-ground test bar helps eliminate taper errors when turning long workpieces and ensures maximum machining accuracy.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eFeaturing a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eMorse Taper No. 3 (MT3) shank\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e and a precision-ground 23mm diameter parallel section, the test bar can be used between centers or directly in MT3 spindle tapers for alignment testing. With an accuracy of \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e1–5 microns\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e and a maximum run-out of just \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e0.0002\"\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, it provides reliable results for professional workshops, machine shops, tool rooms, and precision engineering environments.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe bar is center-drilled at both ends, making it suitable for between-center alignment checks as well as spindle inspection and calibration tasks.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003e✨ Key Features\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e✅ Precision MT3 Lathe Alignment Test Bar\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e✅ Manufactured from Premium EN31 Alloy Steel\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e✅ Hardened \u0026amp; Ground to 58–62 HRC\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e✅ Accuracy Within 1–5 Microns\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e✅ Maximum Run-Out: 0.0002\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e✅ Ideal for Tailstock Alignment Correction\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e✅ Suitable for Between-Centers Alignment Testing\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e✅ Precision Ground Parallel Measuring Section\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e✅ Center Drilled on Both Ends\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e✅ Professional Quality Inspection Tool\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003e📏 Specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eProduct Type: Lathe Alignment Test Bar\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eShank Type: Morse Taper No. 3 (MT3)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMaterial: EN31 Alloy Steel\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHardness: 58–62 HRC\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOverall Length: 335mm (13-3\/16\")\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eParallel Length: 245mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMT3 Taper Length: 90mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMeasuring Diameter: 23mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAccuracy: 1–5 Microns\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMaximum Run-Out: 0.0002\"\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEnd Type: Center Drilled Both Ends\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003e🛠️ Applications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e🔹 Lathe Tailstock Alignment\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e🔹 Spindle Alignment Testing\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e🔹 Between Centers Inspection\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e🔹 Lathe Accuracy Verification\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e🔹 Machine Calibration\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e🔹 Precision Turning Setup\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e🔹 Tool Room Inspection\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e🔹 Engineering Workshops\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e🔹 Machine Shop Maintenance\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e🔹 Quality Control Checks\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e🔹 Metalworking Applications\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e🔹 Precision Manufacturing\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003e📦 Package Contents\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e1 x MT3 Lathe Alignment Test Bar\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePrecision Ground \u0026amp; Hardened EN31 Construction\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BLUEFOX TOOLS","offers":[{"title":"Default Title","offer_id":63012126065011,"sku":"TESTBAR MT3","price":42.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0961\/3626\/6099\/files\/transparent-Photoroom-2026-06-22T162023.794.jpg?v=1782125436","url":"https:\/\/bluefoxtoolmart.com\/products\/mt3-lathe-alignment-test-bar-335mm-en31-alloy-steel","provider":"bluefoxtools","version":"1.0","type":"link"}