{"product_id":"guhring-9055190063500-cobalt-jobber-drill-bit-letter-e","title":"Guhring 9055190063500 Cobalt Jobber Drill Bit Letter E","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe GUHRING 9055190063500 is a cobalt jobber-length drill bit sized to Letter E (0.2500 inches, 1\/4 inches) with a titanium nitride (TiN) coating and a 118-degree four-facet split point. Built to DIN 338 standards from M35 cobalt high-speed steel, it delivers consistent performance in demanding drilling applications. The two-flute spiral design with web thinning and a tapered web configuration improves chip evacuation and reduces thrust force at the cutting edge. Overall length is 101.00 mm and the straight-cylindrical shank is 0.2500 inches (6.35 mm) in diameter. This bit is suited for machinists, maintenance technicians, and metalworking professionals who need reliable hole quality in production or repair environments.\u003c\/p\u003e\u003cp\u003eThe 9055190063500 is designed for right-hand cutting in a range of workpiece materials including aluminum, general steels, stainless, and non-ferrous metals, as reflected by its material codes K, M, N, and P. Its 5xD flute-by-diameter ratio and 63.00 mm flute length support a maximum drilling depth of approximately 53.48 mm (2.106 inches). The TiN coating reduces friction and extends tool life in moderate-heat applications. This Series 5519 bit suits bench drill presses, knee mills, CNC machining centers, and hand-held electric drills with a standard keyed or keyless chuck.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eM35 cobalt HSS construction for elevated heat and wear resistance\u003c\/li\u003e\n\u003cli\u003eTitanium nitride (TiN) coating reduces friction and extends tool life\u003c\/li\u003e\n\u003cli\u003e118-degree four-facet split point with web thinning for reduced thrust and self-centering entry\u003c\/li\u003e\n\u003cli\u003eTwo-spiral-flute, right-hand cut design conforming to DIN 338\u003c\/li\u003e\n\u003cli\u003eStraight-cylindrical shank (0.2500 inches) fits standard chucks without an adapter\u003c\/li\u003e\n\u003cli\u003eNo coolant-through requirement; suitable for dry or flood-coolant setups\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a DIN 338-compliant jobber-length drill bit for use in any drill press, milling machine, or handheld drill accepting a 1\/4-inch straight-cylindrical shank. Compatible primary workpiece material codes K, M, N, and P as specified by the manufacturer.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and use should be performed by a qualified machinist or maintenance technician familiar with rotating cutting tools. Secure the shank fully in the chuck and verify zero runout before operation. Always bring the spindle to a complete stop before changing or inspecting the bit. Eye protection and appropriate chip guards are required per standard shop safety practice.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Inch)\u003c\/strong\u003e: 1\/4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Letter)\u003c\/strong\u003e: E\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.2500 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: M35 Cobalt HSS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: Titanium Nitride (TiN)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 118 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Four Facet 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 (Regular)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 101.00 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 63.00 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.2500 inches (6.35 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 38.00 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 53.48 mm (2.106 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute by Diameter Ratio\u003c\/strong\u003e: 5xD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered, Web-Thinned\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter Tolerance\u003c\/strong\u003e: +0.000 to -0.022 mm\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: 5519\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.04 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: 9055190063500\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GUHRING","offers":[{"title":"Default Title","offer_id":51727985180978,"sku":"9055190063500","price":26.25,"currency_code":"USD","in_stock":true}],"url":"https:\/\/voomisupply.com\/products\/guhring-9055190063500-cobalt-jobber-drill-bit-letter-e","provider":"Voomi Supply","version":"1.0","type":"link"}