{"product_id":"precision-twist-drill-6001271-aircraft-drill-bit-43-hss","title":"Precision Twist Drill 6001271 Aircraft Drill Bit 43 Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe PRECISION TWIST DRILL 6001271 is a wire-gauge aircraft extension drill bit designed for precision hole-making in metalworking and aerospace maintenance applications. Built from high speed steel (HSS) with an oxide finish, this drill bit measures 0.089 inches in diameter (wire size 43) and features a 135-degree split point that self-centers on contact, reducing the need for a center punch on most surfaces. The 1.25-inch spiral flute length and straight-cylindrical shank make it compatible with standard drill chucks and quick-change holders. It is a general-purpose bit suited for right-hand rotation in handheld and drill-press setups. Licensed technicians and maintenance professionals performing aircraft or close-tolerance metalwork rely on this type of bit for accurate, repeatable results.\u003c\/p\u003e\n\u003cp\u003eThis drill bit is intended for use in aircraft structural maintenance, precision sheet metal work, and general metal fabrication where tight tolerances and accurate hole placement are required. The Series 501-6 designation identifies it as part of PRECISION TWIST DRILL's standard aircraft extension line, appropriate for professionals working on aluminum, mild steel, and similar materials. The 4xD flute-to-diameter ratio supports chip evacuation in moderate-depth holes. It installs individually and is packaged as a single unit.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eWire size 43 diameter at 0.089 inches for close-tolerance hole applications\u003c\/li\u003e\n  \u003cli\u003e135-degree split point with web thinning for self-centering entry and reduced thrust\u003c\/li\u003e\n  \u003cli\u003eHigh speed steel construction with oxide finish for corrosion resistance and lubricity\u003c\/li\u003e\n  \u003cli\u003eStraight-cylindrical shank at 0.089 inches for use in standard drill chucks\u003c\/li\u003e\n  \u003cli\u003eRight-hand cutting direction with two spiral flutes and tapered web configuration\u003c\/li\u003e\n  \u003cli\u003eMeets NAS 907 Type B standards for aircraft drill bit geometry\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement and standard-use drill bit for applications requiring NAS 907 Type B wire-gauge aircraft extension drill bits in size 43 (0.089 inches). Fits any standard drill chuck accepting a 0.089-inch straight-cylindrical shank.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and use of this drill bit should be performed by qualified machinists, aircraft maintenance technicians, or metalworking professionals. Secure the straight-cylindrical shank firmly in the drill chuck before operation and confirm the workpiece is clamped or fixtured to prevent movement. Always wear appropriate eye protection and follow applicable safety standards for the work environment. Replace the bit when wear causes deviation from tolerance or when the split point shows visible damage.\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: 43\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.089 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 6 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 1.25 inches\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\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.089 inches\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\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: 501-6\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: 0.04167 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: 6001271\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PRECISION TWIST DRILL","offers":[{"title":"Default Title","offer_id":51722288890162,"sku":"6001271","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/242a725ff91a89d972c5cf595935e053_488d15d6-3687-40ec-a041-a77a7de36455.jpg?v=1788588730","url":"https:\/\/voomisupply.com\/products\/precision-twist-drill-6001271-aircraft-drill-bit-43-hss","provider":"Voomi Supply","version":"1.0","type":"link"}