{"product_id":"guhring-9003050034500-jobber-drill-bit-no-29-cobalt","title":"Guhring 9003050034500 Jobber Drill Bit No.29 Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe GUHRING 9003050034500 is a cobalt jobber length drill bit designed for general-purpose metal drilling in demanding production and maintenance environments. Built to DIN 338 standards, it carries a No. 29 wire gauge size with a decimal diameter of 0.1358 inches. The 118-degree standard point angle delivers reliable centering on flat stock without a pilot hole. An oxide coating reduces friction and extends tool life in abrasive materials. With an overall length of 70 millimeters and a spiral flute, this bit is suited for repeated use in hand-held drills, drill presses, and CNC setups where consistent hole quality matters. Licensed machinists, tool-and-die technicians, and maintenance mechanics are the primary installers.\u003c\/p\u003e\u003cp\u003eThis drill bit is rated for use in cast iron and steel workpieces, covering material codes K and P. The straight-cylindrical shank fits standard three-jaw chucks without adapters. The regular spiral flute and web-thinned point configuration reduce thrust requirements and improve chip evacuation in deep-entry drilling. With a maximum drilling depth of 1.332 inches (33.83 millimeters) and a flute-to-diameter ratio of 5xD, the bit handles typical through-hole and blind-hole applications found in fabrication shops, maintenance bays, and light manufacturing cells.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCobalt construction withstands elevated heat generated when drilling hardened steel and cast iron\u003c\/li\u003e\n\u003cli\u003eOxide coating reduces friction and resists built-up edge on ferrous materials\u003c\/li\u003e\n\u003cli\u003e118-degree standard point angle for general-purpose entry on flat and curved stock\u003c\/li\u003e\n\u003cli\u003eWeb-thinned, tapered web reduces drilling thrust and improves chip flow\u003c\/li\u003e\n\u003cli\u003eDIN 338 specification ensures dimensional consistency and interchangeability\u003c\/li\u003e\n\u003cli\u003eRight-hand spiral flute with 2-flute configuration for clean chip evacuation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or standard supply drill bit for general-purpose jobber length applications in cast iron and steel, per DIN 338 specification.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstall this bit into a properly sized three-jaw chuck or collet, ensuring the straight-cylindrical shank is fully seated before tightening. Power down the drill press or de-energize the CNC spindle before changing tooling. Use appropriate cutting fluid or coolant on steel workpieces to manage heat, noting that this bit does not support through-spindle coolant delivery. Verify workpiece is securely clamped before beginning the drilling cycle.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire)\u003c\/strong\u003e: No. 29\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter (Decimal Inch)\u003c\/strong\u003e: 0.1358 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 118 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 70 millimeters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 39 millimeters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 31 millimeters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.1358 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 1.332 inches (33.83 millimeters)\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\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\u003eCoating\/Finish\u003c\/strong\u003e: Oxide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Standard, Web-Thinned\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered\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\u003eCoolant Through\u003c\/strong\u003e: No\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: 305\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: -0.018 to 0.000 millimeters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.05 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: 9003050034500\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GUHRING","offers":[{"title":"Default Title","offer_id":51730477187378,"sku":"9003050034500","price":18.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6f683727def4900f1b5c1d4bbbae0634.jpg?v=1788718134","url":"https:\/\/voomisupply.com\/products\/guhring-9003050034500-jobber-drill-bit-no-29-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}