{"product_id":"guhring-9055110063500-jobber-drill-bit-letter-e-carbide","title":"Guhring 9055110063500 Jobber Drill Bit Letter E Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe GUHRING 9055110063500 is a jobber-length twist drill bit built from submicron-grade solid carbide and finished with a FIREX coating. It cuts a 0.2500-inch (Letter E) diameter hole with a 140-degree split-point (SU) tip that self-centers on entry and reduces the need for a center punch. Overall length is 3.58 inches with a 2.09-inch flute length, keeping the tool compact and rigid for production drilling. The straight-cylindrical shank measures 0.315 inches in diameter. Designed for right-hand cutting with a regular spiral flute, this bit is well suited for high-output drilling in ferrous materials. Licensed machinists and maintenance technicians working in metal fabrication, job shops, and industrial maintenance are the primary installers.\u003c\/p\u003e\u003cp\u003eThis drill bit is engineered for drilling cast iron and steel, including both P-category and K-category materials under the ISO workpiece classification system. The 5xD flute-to-diameter ratio and web-thinned, tapered web configuration support efficient chip evacuation in deeper holes. Coolant-through capability allows internal coolant delivery for extended tool life and heat control in high-cycle or high-feed applications. It conforms to DIN 6537 L and DIN 6535 standards and belongs to GUHRING Series 5511, a line built for demanding production environments.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSubmicron-grade solid carbide construction for rigidity and wear resistance in ferrous materials\u003c\/li\u003e\n\u003cli\u003eFIREX coating reduces friction and extends tool life in cast iron and steel applications\u003c\/li\u003e\n\u003cli\u003e140-degree SU split-point tip provides self-centering entry without a pilot hole\u003c\/li\u003e\n\u003cli\u003eCoolant-through design supports internal coolant delivery for heat management in high-cycle use\u003c\/li\u003e\n\u003cli\u003eWeb-thinned, tapered web improves chip flow and reduces thrust force\u003c\/li\u003e\n\u003cli\u003eConforms to DIN 6537 L and DIN 6535 standards for consistent dimensional accuracy\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for drilling cast iron and steel workpieces classified under ISO material groups P and K. Fits standard drill chucks and collets accepting a 0.315-inch straight-cylindrical shank. Compliant with DIN 6535 and DIN 6537 L, making it a direct dimensional match for tooling setups built to those standards.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstall in a drill press, CNC machining center, or hand-held drill with a chuck rated for the 0.315-inch shank diameter. Secure the shank fully in the chuck or collet before operation. When using the coolant-through feature, connect to a clean, filtered coolant supply at the machine spindle and verify coolant flow before the first cut. Follow machine manufacturer torque and speed recommendations for solid carbide tooling; carbide is brittle and can fracture if subjected to side loading or excessive runout.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size\u003c\/strong\u003e: 0.2500 inches (Letter E)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 140 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: SU (Self-Centering)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Submicron-Grade Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: FIREX\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.58 inches (91 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 2.09 inches (53 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 1.71 inches (43.48 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.315 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 1.50 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\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\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered, Web-Thinned\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute By Diameter Ratio\u003c\/strong\u003e: 5xD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter Tolerance\u003c\/strong\u003e: 0.006 to 0.021 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: Yes\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\u003eSeries\u003c\/strong\u003e: 5511\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: DIN 6535, DIN 6537 L\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23241634\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.09 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: 9055110063500\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GUHRING","offers":[{"title":"Default Title","offer_id":51755376607538,"sku":"9055110063500","price":234.22,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/05221ee3ce3b80244db5048b38866d2c_70f9da50-bc9a-4313-9b0a-bf2eb9c8745e.jpg?v=1788954281","url":"https:\/\/voomisupply.com\/products\/guhring-9055110063500-jobber-drill-bit-letter-e-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}