{"product_id":"guhring-9003050041700-cobalt-jobber-drill-bit-4-17mm","title":"Guhring 9003050041700 Cobalt Jobber Drill Bit 4.17mm","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe GUHRING 9003050041700 is a cobalt jobber length drill bit designed for general-purpose drilling in demanding metal fabrication and machining applications. Built to DIN 338 standards, this bit features a 118-degree cone relief point and a web-thinned tip geometry that reduces thrust and improves chip clearance at entry. The overall length is 75 mm, with a flute length of 43 mm and a maximum drilling depth of 36.75 mm (1.447 inches). The straight-cylindrical shank measures 4.17 mm in diameter (0.1642 inches decimal), making it compatible with standard drill chucks. Cobalt construction provides elevated heat resistance compared to standard high-speed steel, supporting use in harder ferrous workpiece materials without coolant-through capability required.\u003c\/p\u003e\u003cp\u003eThis drill bit is suited for production and maintenance drilling in cast iron and steel workpieces. The Series 305 designation places it within a well-established jobber-length line used by machinists, fabricators, and maintenance technicians in both shop and field environments. The right-hand spiral flute with regular helix geometry handles general drilling tasks efficiently. At 0.1642 inches in decimal diameter, this bit covers common hole sizes in the 0.1500 to 0.2000 inch range, making it a practical choice when metric-to-inch crossover sizing is needed on mixed-spec jobs.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCobalt construction for improved heat resistance in steel and cast iron drilling\u003c\/li\u003e\n\u003cli\u003e118-degree cone relief point with web-thinning for reduced entry thrust\u003c\/li\u003e\n\u003cli\u003eDIN 338 standard jobber length with 75 mm OAL and 43 mm flute length\u003c\/li\u003e\n\u003cli\u003eStraight-cylindrical shank (4.17 mm diameter) fits standard drill chucks\u003c\/li\u003e\n\u003cli\u003eRight-hand cut, regular spiral flute for efficient chip evacuation\u003c\/li\u003e\n\u003cli\u003eBright uncoated finish; no coolant-through required\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a general-purpose jobber length drill bit for use in cast iron and steel workpieces, suitable for standard drill presses, CNC machining centers, and handheld drills accepting straight-cylindrical shanks in the 4.17 mm (0.1642 inch) diameter range.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and use of this drill bit should be performed by qualified machinists or trade professionals familiar with rotary cutting tool safety. Secure the shank fully within the chuck and verify concentricity before operation. Always wear appropriate eye protection and ensure the workpiece is firmly clamped before drilling. Follow machine manufacturer guidelines for spindle speed and feed rate appropriate to the workpiece material and bit diameter.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 4.17 mm (0.1642 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length (OAL)\u003c\/strong\u003e: 75 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 43 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 36.75 mm (1.447 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 4.17 mm (0.1642 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 32 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 118 degrees\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 Helix\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Cone Relief\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb\u003c\/strong\u003e: Web-Thinned\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Cobalt\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\/Coating\u003c\/strong\u003e: Bright\/Uncoated\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\u003eDiameter Tolerance\u003c\/strong\u003e: h8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 305\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: DIN 338\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.009 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: 9003050041700\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GUHRING","offers":[{"title":"Default Title","offer_id":51733294383410,"sku":"9003050041700","price":22.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/0d92e13879f09a076e8541f50cdf4eb5_afe94c41-3922-413e-9601-cfb98f636500.jpg?v=1788753699","url":"https:\/\/voomisupply.com\/products\/guhring-9003050041700-cobalt-jobber-drill-bit-4-17mm","provider":"Voomi Supply","version":"1.0","type":"link"}