{"product_id":"chicago-latrobe-11125-aircraft-extension-drill-bit-hss","title":"Chicago-latrobe 11125 Aircraft Extension Drill Bit Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe CHICAGO-LATROBE 11125 is a high speed steel aircraft extension drill bit engineered for deep-reach drilling in metal fabrication, aerospace maintenance, and structural applications. Built to Series 912 specifications, it carries a 135-degree split point that is self-centering and web-thinned, reducing the need for a center punch and minimizing walking on hard surfaces. The 0.228-inch diameter corresponds to wire size number 1. Oxide finish provides baseline corrosion resistance and reduces chip adhesion during cutting. The straight-cylindrical shank seats securely in standard drill chucks. Licensed trades and MRO technicians working on aircraft structures, long-reach boilermaker work, and HVAC sheet-metal penetrations will recognize this geometry.\u003c\/p\u003e\n\u003cp\u003eThis drill is suited for right-hand spiral-flute cutting in general-purpose ferrous and non-ferrous metals. The 12-inch overall length and 2.625-inch flute length make it the right choice when standard-length bits cannot reach a fastener location — common in aircraft skin repair, deep structural members, and confined mechanical spaces. The tapered web configuration maintains core strength along the full flute length. It conforms to NAS 907 Type B standards, making it appropriate for aerospace and defense maintenance environments where material traceability and dimensional tolerance matter.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e135-degree split point with web thinning for self-centering entry and reduced thrust force\u003c\/li\u003e\n  \u003cli\u003e12-inch overall length provides extended reach into deep or confined work areas\u003c\/li\u003e\n  \u003cli\u003eHigh speed steel construction handles general-purpose ferrous and non-ferrous metals\u003c\/li\u003e\n  \u003cli\u003eOxide finish reduces friction and provides light corrosion resistance\u003c\/li\u003e\n  \u003cli\u003eStraight-cylindrical shank fits standard 3-jaw drill chucks without adapters\u003c\/li\u003e\n  \u003cli\u003eNAS 907 Type B compliant — suitable for aerospace and defense maintenance use\u003c\/li\u003e\n  \u003cli\u003eDiameter tolerance held to +0.0000 to -0.0007 inches for consistent hole sizing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a general-purpose aircraft extension drill conforming to NAS 907 Type B, Series 912. Compatible with any standard drill press, magnetic drill, or hand drill with a chuck accepting a 0.228-inch straight-cylindrical shank.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and use should be performed by machinists, A and P mechanics, boilermakers, or sheet-metal technicians familiar with metal drilling procedures. Secure the workpiece fully before drilling to prevent rotation or shifting during the cut. Use appropriate cutting fluid for the base material to extend tool life and maintain hole-size tolerance. Inspect the split point and cutting edges before each use — a chipped or dulled point on a long-reach drill increases the risk of bit deflection in deep holes.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire)\u003c\/strong\u003e: Number 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.228 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 12 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 2.625 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.228 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 135 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Split\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Thinning\u003c\/strong\u003e: Web-Thinned\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSelf-Centering\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: High Speed Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Oxide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: +0.0000 to -0.0007 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Performance\u003c\/strong\u003e: General Purpose\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 912\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: NAS 907 Type B\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: CHICAGO-LATROBE\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 11125\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CHICAGO-LATROBE","offers":[{"title":"Default Title","offer_id":51737253740850,"sku":"11125","price":201.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/9cfe4602e4dc52ea3b0ff0cce686eaae_5ebac9b3-dfae-4702-b26f-c1f1522dee03.jpg?v=1788786181","url":"https:\/\/voomisupply.com\/products\/chicago-latrobe-11125-aircraft-extension-drill-bit-hss","provider":"Voomi Supply","version":"1.0","type":"link"}