{"product_id":"walter-titex-7684259-extra-length-drill-bit-0-25in-solid-carbide","title":"Walter-titex 7684259 Extra Length Drill Bit 0.25in Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe WALTER-TITEX 7684259 is a solid carbide extra length drill bit designed for precision drilling in demanding industrial and trade applications. With a 0.25 inch (6.35 mm) cutting diameter, a 140-degree drill point angle, and a TiSiAlCrN coating, this bit delivers extended tool life and thermal resistance in difficult-to-machine materials. The 5.315-inch flute length and 6.89-inch overall length give it the reach needed for deep-hole work well beyond what standard-length bits can achieve. Right-hand cutting geometry and an h7 diameter tolerance ensure accurate, repeatable hole quality.\u003c\/p\u003e\u003cp\u003eThis bit is suited for blind hole drilling, cross hole drilling, inclined hole exit, and stack drilling operations. Primary workpiece materials include alloy steels and titanium alloys. Secondary applications cover glass and graphite. The 16xD flute-to-diameter ratio supports a maximum drilling depth of 4.882 inches (124 mm), making it a practical choice for aerospace, automotive, and precision machining environments where deep, accurate holes in tough materials are routine.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide construction for rigidity and wear resistance in hard and abrasive materials\u003c\/li\u003e\n\u003cli\u003eTiSiAlCrN coating provides thermal protection and reduces built-up edge at high cutting speeds\u003c\/li\u003e\n\u003cli\u003e140-degree drill point angle optimized for alloy steel and titanium alloy entry without walking\u003c\/li\u003e\n\u003cli\u003e16xD flute-to-diameter ratio with maximum drilling depth of 4.882 inches\u003c\/li\u003e\n\u003cli\u003eStraight-cylindrical shank with 0.315-inch shank diameter for secure chuck or collet retention\u003c\/li\u003e\n\u003cli\u003eRight-hand cutting direction; h7 diameter tolerance for close-tolerance hole requirements\u003c\/li\u003e\n\u003cli\u003eMeets ANSI and ISO standards\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eThe 7684259 belongs to the WALTER-TITEX Series DC160-16-A1 and is rated for primary workpiece material codes K, N, P, and S covering alloy and titanium alloys, with secondary compatibility for material codes H, M, and O covering glass and graphite. Designed for use in CNC machining centers and drilling machines that accept a 0.315-inch straight-cylindrical shank.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and operation of this drill bit should be performed by a qualified machinist or tooling technician familiar with carbide cutting tools. Secure the straight-cylindrical shank fully in a precision collet or chuck before operation, and verify runout within machine specifications before engaging the workpiece. Coolant-through is not supported on this bit, so appropriate surface-applied cutting fluid or mist coolant should be used when drilling titanium alloys or other thermally sensitive materials. Inspect the cutting edge for chipping before each use, as carbide tooling is brittle and should not be subjected to interrupted cuts or side loading beyond the tool design.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.25 inches (6.35 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 6.89 inches (175 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 5.315 inches (135 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 4.882 inches (124 mm)\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: 0.045 inches (1.16 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.315 inches (8.00 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 1.417 inches (36 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute by Diameter Ratio\u003c\/strong\u003e: 16xD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: TiSiAlCrN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: h7\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\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: DC160-16-A1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI, ISO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.13 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: 7684259\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"WALTER-TITEX","offers":[{"title":"Default Title","offer_id":51738797310258,"sku":"7684259","price":631.11,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/e5503e8d87858c98701d163e4b918465_31e44446-24c9-431e-a08e-1d5787196440.jpg?v=1788804635","url":"https:\/\/voomisupply.com\/products\/walter-titex-7684259-extra-length-drill-bit-0-25in-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}