{"product_id":"precision-twist-drill-6001405-letter-m-hss-extension-drill","title":"Precision Twist Drill 6001405 Letter M Hss Extension Drill","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe PRECISION TWIST DRILL 6001405 is a Letter M aircraft extension drill bit designed for deep-hole drilling applications where standard-length bits cannot reach. Built from high speed steel with an oxide finish, it measures 12 inches in overall length with a 3.0625-inch flute length, giving technicians the reach needed for structural and airframe work. The 135-degree split point is self-centering and web-thinned, which reduces walking on entry and lowers thrust load. The straight-cylindrical shank at 0.295 inches diameter fits standard drill chucks without an adapter. This drill ships individually and is suited for use by aviation maintenance technicians, HVAC installers, and metalworking tradespeople who need extended reach in steel, aluminum, and similar materials.\u003c\/p\u003e\n\u003cp\u003eThe 6001405 fits production and MRO applications where a Letter M hole size is required at depth. The 12-inch overall length makes it practical for drilling through structural members, deep cavities, bulkheads, or framing where a jobber-length bit would not reach. The spiral flute geometry promotes chip evacuation during extended cuts. Right-hand cutting direction is standard for conventional drill press and hand-drill use. This bit is a general-purpose tool appropriate for sheet metal, mild steel, and aluminum in both shop and field settings.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e135-degree split point reduces walking and lowers entry thrust\u003c\/li\u003e\n  \u003cli\u003eSelf-centering geometry eliminates the need for a center punch on most materials\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned, tapered web configuration reduces cutting resistance\u003c\/li\u003e\n  \u003cli\u003e12-inch overall length provides extended reach for deep or obstructed drilling locations\u003c\/li\u003e\n  \u003cli\u003eHigh speed steel construction with oxide finish for general-purpose metal drilling\u003c\/li\u003e\n  \u003cli\u003eMeets NAS 907 Type B standard\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a general-purpose Letter M aircraft extension drill bit compatible with standard straight-shank drill chucks accepting a 0.295-inch shank diameter.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eExtension drill bits of this length should be secured firmly in a keyed or keyless chuck and run at speeds appropriate for the workpiece material and bit diameter. Always clamp or secure the workpiece before drilling to prevent rotation. Wear appropriate eye protection and ensure cutting fluid is used when drilling ferrous materials to extend bit life. Inspect the split point for wear or damage before each use, as a dull or chipped point will cause walking even on self-centering geometry.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size\u003c\/strong\u003e: Letter M (0.2950 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: 3.0625 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.2950 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\u003eSelf-Centering\u003c\/strong\u003e: Yes\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, Web-Thinned\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\u003eSeries\u003c\/strong\u003e: 502-12\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: NAS 907 Type B\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.083 pounds\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: PRECISION TWIST DRILL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 6001405\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PRECISION TWIST DRILL","offers":[{"title":"Default Title","offer_id":52016628039986,"sku":"6001405","price":54.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/8b95963359e0e9e891b37a0b3fb5497c_07480e25-a88e-43b2-a43f-6e101b54d7bf.jpg?v=1790008820","url":"https:\/\/voomisupply.com\/products\/precision-twist-drill-6001405-letter-m-hss-extension-drill","provider":"Voomi Supply","version":"1.0","type":"link"}