{"product_id":"guhring-9055190034500-cobalt-jobber-drill-bit-no-29","title":"Guhring 9055190034500 Cobalt Jobber Drill Bit No. 29","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe GUHRING 9055190034500 is a cobalt jobber-length drill bit designed for precision drilling in metalworking and fabrication applications. Built to DIN 338 standards, this Series 5519 bit features a M35 cobalt steel construction with a Titanium Nitride (TiN) coating for extended tool life and heat resistance. The bit measures 0.136 inches in diameter (wire gauge No. 29) with a four-facet split point at 118 degrees, promoting accurate starting and reduced thrust. With a 70 mm overall length and a regular spiral flute design, it delivers consistent chip evacuation in a compact, standard jobber profile. Licensed HVAC, plumbing, and electrical trades as well as metal fabricators routinely rely on this format for general-purpose metal drilling.\u003c\/p\u003e\u003cp\u003eThis drill bit is suited for use in aluminum, mild steel, stainless steel, and cast iron workpieces, corresponding to material codes K, M, N, and P per DIN classification. The straight-cylindrical shank with a 3.45 mm diameter fits standard keyed and keyless chucks on benchtop drill presses, handheld drills, and CNC machining centers. The 39 mm flute length provides adequate chip clearance for holes up to 33.83 mm deep, making it appropriate for through-hole and moderate blind-hole work in light to medium production environments.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eM35 cobalt steel construction for improved heat and wear resistance versus standard HSS bits\u003c\/li\u003e\n\u003cli\u003eTitanium Nitride (TiN) coating extends cutting edge life on abrasive and hard materials\u003c\/li\u003e\n\u003cli\u003eFour-facet split point at 118 degrees reduces walking and improves hole entry accuracy\u003c\/li\u003e\n\u003cli\u003eWeb-thinned, tapered web design lowers cutting torque and thrust requirements\u003c\/li\u003e\n\u003cli\u003eDIN 338 standard geometry ensures interchangeability with tooling spec DIN 338 setups\u003c\/li\u003e\n\u003cli\u003eRegular spiral flute with 5xD flute-to-diameter ratio for reliable chip evacuation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement and standard jobber drill bit compatible with any drill press, handheld drill, or CNC spindle accepting a 3.45 mm straight-cylindrical shank, for use on aluminum, mild steel, stainless, and cast iron per DIN 338 material group classifications K, M, N, and P.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis bit is installed and replaced by machinists, tool-and-die technicians, and trade professionals performing metal drilling tasks. Secure the shank fully in the chuck before operation and confirm chuck key removal prior to powering the drill. Use appropriate cutting fluid or coolant for the workpiece material to preserve coating integrity, noting that this bit does not support coolant-through delivery. Inspect the cutting edges and TiN coating for wear before each use and replace when chipping or dulling is observed to maintain hole tolerance.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire Gauge)\u003c\/strong\u003e: No. 29\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.136 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 mm (approximately 2.76 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 39 mm (approximately 1.54 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 3.45 mm (approximately 0.136 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 31 mm (approximately 1.22 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 33.83 mm (1.332 inches)\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\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpiral Type\u003c\/strong\u003e: Regular\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Four Facet Split\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered 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\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: M35 Cobalt Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: Titanium Nitride (TiN)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Aluminum, Steel, Cast Iron (Codes K, M, N, P)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 5519\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: DIN 338\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: 9055190034500\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GUHRING","offers":[{"title":"Default Title","offer_id":51738422280498,"sku":"9055190034500","price":17.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/bc2796606b86affad3ece68d198f005a_aee7cbf6-d15f-48c4-83fc-a8f43bdcb1d9.jpg?v=1788799327","url":"https:\/\/voomisupply.com\/products\/guhring-9055190034500-cobalt-jobber-drill-bit-no-29","provider":"Voomi Supply","version":"1.0","type":"link"}