{"product_id":"guhring-9055120074000-taper-length-drill-bit-7-4-mm","title":"Guhring 9055120074000 Taper Length Drill Bit 7.4 Mm","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe GUHRING 9055120074000 is a solid carbide taper length drill bit designed for demanding metal-cutting applications in production and maintenance environments. Built to DIN 6537 standards, it features a 140-degree split point (SU point type) with web thinning for self-centering entry and reduced thrust. The bit carries a FIREX coating for extended tool life in abrasive and hard materials. The flute length runs 76 mm with an overall length of 116 mm and a straight cylindrical shank diameter of 8 mm. Coolant-through capability supports high-speed drilling in deep-hole applications. Licensed machinists and tool-and-die professionals are the primary installers.\u003c\/p\u003e\n\u003cp\u003eThis drill bit is suited for drilling alloy steel, cast iron, and stainless steel in both job-shop and production floor settings. The 7xD flute-to-diameter ratio and a maximum drilling depth of 64.90 mm make it appropriate for through-hole and blind-hole work where a standard-length bit lacks reach. The right-hand spiral flute with regular helix handles chip evacuation efficiently in ferrous materials. The 8 mm straight shank fits standard ER collet chucks and precision drill chucks commonly found on CNC machining centers, drill presses, and milling machines.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide construction, material grade K40, for rigidity and wear resistance in hard ferrous materials\u003c\/li\u003e\n  \u003cli\u003eFIREX coating extends tool life when drilling alloy steel, cast iron, and stainless steel\u003c\/li\u003e\n  \u003cli\u003e140-degree SU split point with web thinning for self-centering and reduced entry thrust\u003c\/li\u003e\n  \u003cli\u003eCoolant-through design supports chip flushing and heat management in deep holes\u003c\/li\u003e\n  \u003cli\u003e7xD flute-to-diameter ratio with a maximum drilling depth of 64.90 mm\u003c\/li\u003e\n  \u003cli\u003eDIN 6537 standard, right-hand cut, regular spiral flute\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in alloy steel, cast iron, and stainless steel applications. The 8 mm straight cylindrical shank fits standard ER collet chucks and precision drill chucks on CNC machining centers, drill presses, and milling machines that accept 8 mm shank tooling.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and tool changes should be performed by a qualified machinist with the machine powered down and locked out per OSHA lockout\/tagout procedures. Verify collet chuck or drill chuck runout before seating the shank to avoid premature edge wear. Coolant-through setups require confirmed coolant supply pressure and clean lines before starting a cut. Do not exceed the rated maximum drilling depth of 64.90 mm in a single pass without appropriate pecking cycles.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 5512\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 7.40 mm (0.2913 inches)\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, web-thinned)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 76 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length (OAL)\u003c\/strong\u003e: 116 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 8 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 36 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight cylindrical, non-threaded\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 64.90 mm (2.555 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute-to-Diameter Ratio\u003c\/strong\u003e: 7xD\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\u003eCoolant Through\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Solid carbide, grade K40\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: FIREX\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter Tolerance\u003c\/strong\u003e: m7\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Alloy steel, cast iron, stainless steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: DIN 6537\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.05 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\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: 9055120074000\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GUHRING","offers":[{"title":"Default Title","offer_id":51748643930418,"sku":"9055120074000","price":365.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/8c10ed7d223f39505d96666f46057ace_7a82a141-37c3-4da6-87ba-d567cfc6abf1.jpg?v=1788896117","url":"https:\/\/voomisupply.com\/products\/guhring-9055120074000-taper-length-drill-bit-7-4-mm","provider":"Voomi Supply","version":"1.0","type":"link"}