{"product_id":"precision-twist-drill-6001415-no-47-hss-extension-drill","title":"Precision Twist Drill 6001415 No. 47 Hss Extension Drill","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe PRECISION TWIST DRILL 6001415 is a wire gauge No. 47 aircraft extension drill bit designed for deep-reach drilling applications in aerospace and general metalworking. The bit measures 0.0785 inches in diameter with a 12-inch overall length, giving technicians the reach needed to access fastener locations in confined airframe structures and deep-cavity assemblies. Made from high speed steel with an oxide finish, it features a 135-degree split point for self-centering entry without a center punch. The spiral flute geometry and web-thinned, tapered web construction improve chip evacuation and reduce feed force on right-hand drilling operations.\u003c\/p\u003e\u003cp\u003eThis extension drill is suited for aerospace maintenance, sheet metal fabrication, and general manufacturing environments where standard-length bits cannot reach the work surface. The 12-inch overall length and straight-cylindrical shank allow it to seat in standard drill chucks and extension holders. It is a general-purpose tool appropriate for use in portable air drills, drill presses, and CNC spindles where a No. 47 wire gauge hole is required in steel, aluminum, or similar metals. The Series 501-12 designation identifies it as part of a coordinated line of aircraft extension drills in matching wire gauge sizes.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eWire gauge No. 47 diameter: 0.0785 inches, consistent with NAS 907 Type B standards\u003c\/li\u003e\n\u003cli\u003e135-degree split point is self-centering, reducing walk-out on curved or coated surfaces\u003c\/li\u003e\n\u003cli\u003e12-inch overall length provides extended reach for deep-cavity and airframe drilling\u003c\/li\u003e\n\u003cli\u003eHigh speed steel construction with oxide finish for corrosion resistance and lubricity\u003c\/li\u003e\n\u003cli\u003eWeb-thinned tapered web reduces thrust load and improves chip clearance\u003c\/li\u003e\n\u003cli\u003e2-flute right-hand spiral geometry for efficient chip evacuation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style general-purpose aircraft extension drill for use wherever a wire gauge No. 47 diameter hole is required; compatible with standard straight-shank drill chucks and extension holders accepting a 0.0785-inch shank.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis drill bit is installed and operated by machinists, aerospace mechanics, and sheet metal technicians. Secure the straight-cylindrical shank fully in the chuck to the depth of the chuck jaws before drilling to minimize runout and shank slippage. Disengage and de-energize all power sources before changing bits in any rotary tool. Follow applicable workplace safety standards and manufacturer speed-and-feed recommendations for the workpiece material; do not exceed rated spindle speeds for the bit diameter and material combination.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire Gauge)\u003c\/strong\u003e: No. 47\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.0785 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: 1 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length to Diameter Ratio\u003c\/strong\u003e: 4xD\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\u003eDrill Point Angle\u003c\/strong\u003e: 135 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Split, Self-Centering\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.0785 inches\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\u003eTool Performance\u003c\/strong\u003e: General Purpose\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 501-12\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: NAS 907 Type B\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.042 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: 6001415\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PRECISION TWIST DRILL","offers":[{"title":"Default Title","offer_id":51689228337458,"sku":"6001415","price":33.86,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/da3496e4617881f200db3c68936287ae.jpg?v=1788256298","url":"https:\/\/voomisupply.com\/products\/precision-twist-drill-6001415-no-47-hss-extension-drill","provider":"Voomi Supply","version":"1.0","type":"link"}