{"product_id":"walter-titex-7684398-extra-length-drill-bit-8-5-mm-carbide","title":"Walter-titex 7684398 Extra Length Drill Bit 8.5 Mm Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe WALTER-TITEX 7684398 is a solid carbide extra length drill bit engineered for deep-hole drilling in demanding industrial and machining applications. It measures 8.5 mm in diameter with a 330 mm overall length and a 287 mm flute length, giving it a 30xD flute-to-diameter ratio suited for reaching deep blind holes and stacked workpieces. The 140-degree drill point geometry reduces thrust and improves centering on entry. A TiSiAlCrN coating provides heat resistance and wear protection during high-speed cutting. Coolant-through capability allows cutting fluid to reach the tip directly, extending tool life and aiding chip evacuation in deep bores. This bit is intended for use by machinists and tool-and-die professionals on production CNC equipment.\u003c\/p\u003e\n\u003cp\u003eThis drill bit is designed for primary use in alloy steels and titanium alloys, and it also performs in secondary applications involving glass and graphite. Its h7 diameter tolerance supports precision bore work where close fits are required. Typical applications include blind hole drilling, cross hole drilling, inclined hole exit conditions, and stack drilling operations. The straight-cylindrical shank with a 10 mm shank diameter and 40 mm shank length fits standard collet chucks and drill holders commonly found on machining centers and CNC lathes.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide construction for rigidity and wear resistance in hard materials\u003c\/li\u003e\n  \u003cli\u003eTiSiAlCrN coating extends tool life under elevated cutting temperatures\u003c\/li\u003e\n  \u003cli\u003eCoolant-through design delivers fluid directly to the cutting edge in deep bores\u003c\/li\u003e\n  \u003cli\u003e140-degree drill point angle reduces walking and improves entry accuracy\u003c\/li\u003e\n  \u003cli\u003e30xD flute-to-diameter ratio enables deep blind hole, cross hole, and stack drilling\u003c\/li\u003e\n  \u003cli\u003eh7 diameter tolerance supports close-fit precision bore applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in CNC machining centers and lathes equipped with straight-cylindrical shank toolholders accepting a 10 mm shank. Rated for alloy steel, titanium alloy, glass, and graphite workpiece materials per Series DC160-30-A1 application guidelines. Conforms to ANSI and ISO standards.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified machinist familiar with CNC tooling and cutting parameter setup. Ensure the machine spindle and toolholder are clean and free of debris before seating the shank. Coolant-through supply lines should be confirmed active before beginning a deep-bore cycle to prevent chip packing and premature tool failure. Do not exceed the maximum drilling depth of 273 mm as specified for this series.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 8.5 mm (0.3346 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 330 mm (12.992 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 287 mm (11.299 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 273 mm (10.748 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 10 mm (0.394 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 40 mm (1.575 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\u003eDrill Point Length\u003c\/strong\u003e: 1.55 mm (0.061 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute by Diameter Ratio\u003c\/strong\u003e: 30xD\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\u003eTool Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiSiAlCrN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: h7\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Alloy Steel, Titanium Alloy\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSecondary Workpiece Material\u003c\/strong\u003e: Glass, Graphite\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: DC160-30-A1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI, ISO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Weight\u003c\/strong\u003e: 0.364 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Dimensions\u003c\/strong\u003e: 14.25 x 0.91 x 0.91 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: WALTER-TITEX\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 7684398\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"WALTER-TITEX","offers":[{"title":"Default Title","offer_id":51753408725298,"sku":"7684398","price":1338.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/de55c6c0b03185842e31400ac1f511d3.jpg?v=1788936458","url":"https:\/\/voomisupply.com\/products\/walter-titex-7684398-extra-length-drill-bit-8-5-mm-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}