{"product_id":"guhring-9005300059400-jobber-drill-bit-letter-a-firex","title":"Guhring 9005300059400 Jobber Drill Bit Letter a Firex","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe GUHRING 9005300059400 is a jobber length drill bit designed for high-performance drilling in ferrous materials. It measures letter size A, equivalent to 0.2339 inches in diameter, and is manufactured from powdered metal with a FIREX coating for extended tool life and heat resistance. The bit features a 130-degree drill point angle with cone relief geometry and a parabolic flute design that promotes fast chip evacuation. Overall length is 3.66 inches (93 mm), and the straight-cylindrical shank is 5.94 mm in diameter. This bit is built to DIN 338 standards and carries an h8 diameter tolerance, making it suitable for precision hole work in production and maintenance environments.\u003c\/p\u003e\u003cp\u003eThis drill bit is intended for drilling cast iron and steel in both production shop and field maintenance applications. The fast spiral parabolic flute, rated at a 5xD flute-to-diameter ratio, supports deeper hole drilling with reduced chip packing. The web-thinned point reduces entry force and improves centering. It is well suited for use with CNC machining centers, drill presses, and handheld power tools where consistent hole size and surface finish are required in metal fabrication or repair work. Licensed machinists, tool and die technicians, and maintenance mechanics are the typical end users.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eLetter A size (0.2339 inches) with h8 diameter tolerance for precise hole sizing\u003c\/li\u003e\n\u003cli\u003eFIREX coating provides oxidation and wear resistance during high-speed drilling\u003c\/li\u003e\n\u003cli\u003e130-degree cone relief point angle reduces thrust force on entry\u003c\/li\u003e\n\u003cli\u003eParabolic fast-spiral flute design improves chip evacuation in deep holes\u003c\/li\u003e\n\u003cli\u003eWeb-thinned construction lowers cutting resistance and extends tool life\u003c\/li\u003e\n\u003cli\u003eComplies with DIN 338 standard for jobber length drill bits\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or direct substitute for jobber length drill bits conforming to DIN 338 specifications in letter size A. Primary workpiece materials are cast iron and steel.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by machinists or maintenance technicians using a standard drill chuck or collet sized to accept a 5.94 mm straight-cylindrical shank. Secure the bit fully in the chuck and verify runout before drilling. Power down and de-energize any CNC or automatic feed equipment before inserting or removing the bit. Observe applicable shop safety standards and wear appropriate eye protection when operating.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Letter)\u003c\/strong\u003e: A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.2339 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 130 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Material\u003c\/strong\u003e: Powdered Metal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: FIREX\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.66 inches (93 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 2.24 inches (57 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 1.893 inches (48.09 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 5.94 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 36 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\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: Parabolic Fast Spiral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute by Diameter Ratio\u003c\/strong\u003e: 5xD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Cone Relief\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Thinning\u003c\/strong\u003e: Web-Thinned\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: h8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Cast Iron, Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: DIN 338\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 530\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.025 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: GUHRING\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 9005300059400\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GUHRING","offers":[{"title":"Default Title","offer_id":51743693275442,"sku":"9005300059400","price":40.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/40d61c604dd229317dfddccb66755eec_339bf6b0-a623-4e7a-afde-271fa807f219.jpg?v=1788849284","url":"https:\/\/voomisupply.com\/products\/guhring-9005300059400-jobber-drill-bit-letter-a-firex","provider":"Voomi Supply","version":"1.0","type":"link"}