{"product_id":"guhring-9005520081000-stub-drill-bit-0-3189in-hss","title":"Guhring 9005520081000 Stub Drill Bit 0.3189in Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe GUHRING 9005520081000 is a stub-length (screw machine length) high speed steel drill bit designed for fast, accurate drilling in aluminum and other non-ferrous materials. Manufactured to DIN 1897 standards, it features a parabolic flute geometry and a 130-degree split point that promotes efficient chip evacuation and reduces thrust in short-depth applications. The bright, uncoated finish is standard for HSS tooling used in general-purpose machining. This bit belongs to the Series 552 and is intended for use by machinists and tool-and-die professionals in production environments where stub-length rigidity is required.\u003c\/p\u003e\u003cp\u003eThis drill bit is suited for short-hole drilling operations in aluminum as a primary workpiece material, where a compact stub-length body improves rigidity and reduces deflection compared to jobber-length bits. The parabolic flute profile paired with web thinning enhances chip flow at the cutting edge, making it effective for moderate-speed drilling in CNC machining centers, drill presses, and manual machine tools. The straight cylindrical shank provides consistent clamping in standard drill chucks and collet systems.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eDIN 1897 stub length geometry for improved rigidity in short-depth holes\u003c\/li\u003e\n\u003cli\u003eParabolic flute with web thinning promotes chip evacuation and reduces cutting force\u003c\/li\u003e\n\u003cli\u003e130-degree point angle optimized for aluminum and non-ferrous materials\u003c\/li\u003e\n\u003cli\u003eHigh speed steel construction with bright uncoated finish for standard machining applications\u003c\/li\u003e\n\u003cli\u003eRight-hand cut with straight cylindrical shank for compatibility with standard chucks and collets\u003c\/li\u003e\n\u003cli\u003eParallel web configuration maintains consistent edge geometry through regrind cycles\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or direct-use drill bit for machining operations requiring a DIN 1897 stub-length bit in the 0.3000 to 0.3500 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 familiar with machine tool operation and cutting tool setup. Secure the shank fully in the chuck or collet before operation and verify runout is within acceptable tolerance for the application. Do not exceed the recommended drilling depth of 0.9780 inches for this stub-length configuration. Always power down and de-energize the machine before changing tooling.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.3189 inches (8.10 mm)\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: High Speed Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright\/Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Parabolic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 1.4567 inches (37.00 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.1102 inches (79.00 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 0.9780 inches (24.85 mm)\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\u003eWeb Configuration\u003c\/strong\u003e: Parallel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Thinning\u003c\/strong\u003e: Web-Thinned\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Length Type\u003c\/strong\u003e: Stub\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute-to-Diameter Ratio\u003c\/strong\u003e: 3xD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter Tolerance\u003c\/strong\u003e: +0.000 to -0.022 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Aluminum\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: 552\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: DIN 1897\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Grade\u003c\/strong\u003e: High Performance\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: 9005520081000\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GUHRING","offers":[{"title":"Default Title","offer_id":51735219994930,"sku":"9005520081000","price":39.07,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ba69f70c0702b68b7f133ac9d686b5bb.jpg?v=1788770483","url":"https:\/\/voomisupply.com\/products\/guhring-9005520081000-stub-drill-bit-0-3189in-hss","provider":"Voomi Supply","version":"1.0","type":"link"}