{"product_id":"guhring-9006590054000-cobalt-drill-bit-5-40mm-series-659","title":"Guhring 9006590054000 Cobalt Drill Bit 5.40mm Series 659","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe GUHRING 9006590054000 is a screw machine length (stub) drill bit built for cutting titanium alloys and other demanding workpiece materials. Manufactured from M35 cobalt high-speed steel and finished with a TiN tip coating, this bit provides heat and wear resistance where standard HSS tooling falls short. The 130-degree split point angle with web thinning reduces thrust force and improves self-centering on entry. It runs a straight-cylindrical shank at 5.40 mm diameter and conforms to DIN 1897 standards. Licensed HVAC techs, machinists, and tool-room pros working in aerospace, industrial maintenance, or precision fabrication will find this bit suited to close-tolerance hole production.\u003c\/p\u003e\n\u003cp\u003eThis drill bit is sized at 5.40 mm (0.2126 inches) diameter and falls within the 5.00 to 6.50 mm size range of the Series 659 lineup. The stub-length format keeps the bit rigid and minimizes deflection in shallow-depth applications. Maximum drilling depth is 1.1024 inches (28.00 mm), making it appropriate for through-holes and blind holes in structural and exotic metal components where a full-length bit would introduce unnecessary flex. The regular spiral, two-flute design promotes chip evacuation in right-hand rotation setups.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eM35 cobalt steel construction with TiN drill tip coating for extended tool life in hard and exotic alloys\u003c\/li\u003e\n  \u003cli\u003e130-degree point angle with web thinning for reduced entry thrust and improved hole accuracy\u003c\/li\u003e\n  \u003cli\u003eStub (screw machine) length format provides rigidity and minimizes deflection\u003c\/li\u003e\n  \u003cli\u003eStraight-cylindrical shank at 5.40 mm for use in standard drill chucks and collet holders\u003c\/li\u003e\n  \u003cli\u003eTapered web and 3xD flute-to-diameter ratio support efficient chip clearing\u003c\/li\u003e\n  \u003cli\u003eConforms to DIN 1897 specification for consistent dimensional standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a DIN 1897 stub-length replacement drill bit for use in drill presses, CNC machining centers, and hand-held drilling equipment accepting a 5.40 mm straight-cylindrical shank. Intended primary workpiece material is titanium alloy; the TiN coating also supports use in stainless steel and high-hardness ferrous materials.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eSecure the shank fully in the chuck or collet before operation and verify runout before cutting. Power down and lock out the machine spindle before changing or inspecting tooling. Use appropriate cutting fluid or coolant for the workpiece material, as this bit does not support through-coolant delivery. Follow the machine manufacturer and applicable ANSI or shop-safety guidelines for drilling speed and feed rates based on workpiece material and bit diameter.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 5.40 mm (0.2126 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\u003eTool Material\u003c\/strong\u003e: M35 Cobalt High-Speed Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTip Coating\u003c\/strong\u003e: TiN\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: Regular Spiral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 28.00 mm (1.1024 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 66.00 mm (2.5984 inches)\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: 5.40 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 38.00 mm (1.4961 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 28.00 mm (1.1024 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\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Length Type\u003c\/strong\u003e: Stub (Screw Machine)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute by Diameter Ratio\u003c\/strong\u003e: 3xD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: +0.000 to -0.018 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Titanium Alloy\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: DIN 1897\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 659\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.25 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: GUHRING\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 9006590054000\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GUHRING","offers":[{"title":"Default Title","offer_id":51741078749490,"sku":"9006590054000","price":36.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/c66a065cc97224872f8399a3c6ad4594.jpg?v=1788829251","url":"https:\/\/voomisupply.com\/products\/guhring-9006590054000-cobalt-drill-bit-5-40mm-series-659","provider":"Voomi Supply","version":"1.0","type":"link"}