{"product_id":"walter-titex-6618761-extra-length-drill-bit-4-1mm-carbide","title":"Walter-titex 6618761 Extra Length Drill Bit 4.1mm Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe WALTER-TITEX 6618761 is a solid carbide extra length drill bit engineered for precision drilling in demanding materials. Measuring 4.1 mm in diameter with a 140-degree split point, it delivers accurate hole entry and reduced thrust in hard, abrasive workpieces. The TiNAl coating provides thermal resistance and extended tool life under high-speed cutting conditions. With a 64 mm flute length, a 6 mm straight-cylindrical shank, and a 102 mm overall length, this bit is built for applications that require extended reach beyond what a standard-length drill can provide. It is suited for use by machinists and toolroom technicians in CNC and manual drilling operations.\u003c\/p\u003e\n\u003cp\u003eThis drill bit is designed for blind hole, cross hole, inclined hole exit, and stack drilling operations. It is optimized for primary workpiece materials including cobalt, iron, nickel, and titanium alloys, with secondary capability in glass and graphite. The right-hand cutting direction and 2-flute geometry support efficient chip evacuation. Coolant-through capability allows internal coolant delivery for thermal management during deep-hole drilling. The 12xD flute-to-diameter ratio supports drilling up to 56 mm deep, making it suitable for aerospace, medical, and precision manufacturing environments.\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\u003eTiNAl coating for high-temperature performance and extended tool life\u003c\/li\u003e\n  \u003cli\u003e140-degree point angle reduces thrust and improves hole entry accuracy\u003c\/li\u003e\n  \u003cli\u003eCoolant-through design supports internal coolant delivery for deep-hole drilling\u003c\/li\u003e\n  \u003cli\u003e12xD flute ratio with maximum drilling depth of 56 mm\u003c\/li\u003e\n  \u003cli\u003eRated for blind hole, cross hole, inclined hole exit, and stack drilling applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in cobalt, iron, nickel, and titanium alloy workpieces as primary materials, with secondary suitability for glass and graphite. Belongs to the DC150-12-A1 series. Conforms to ANSI, DIN 6535 HA, and ISO standards. Shank diameter is 6 mm straight-cylindrical per DIN 6535 HA specification.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and use of this drill bit should be performed by qualified machinists or toolroom technicians familiar with carbide tooling. Secure the shank fully in the tool holder or collet chuck before operation and verify runout before drilling. Enable coolant-through flow when drilling to depth to prevent thermal damage to the tool and workpiece. Do not exceed the rated maximum drilling depth of 56 mm without withdrawing the tool to clear chips.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 4.1 mm (0.1614 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 102 mm (4.016 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 64 mm (2.52 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 6 mm (0.236 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 36 mm (1.417 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 56 mm (2.205 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: 0.75 mm (0.029 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: 12xD\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: TiNAl\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter Tolerance\u003c\/strong\u003e: m7\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Cobalt; Iron; Nickel; 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: DC150-12-A1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI; DIN 6535 HA; ISO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.057 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Dimensions\u003c\/strong\u003e: 5.43 inches L x 0.51 inches W x 0.47 inches H\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: 6618761\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"WALTER-TITEX","offers":[{"title":"Default Title","offer_id":51740977725746,"sku":"6618761","price":275.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/75bc2c83fd150f2b37ea4dd0fbe3020f_e430fef5-b64e-4fea-9697-44db6b5de010.jpg?v=1788828715","url":"https:\/\/voomisupply.com\/products\/walter-titex-6618761-extra-length-drill-bit-4-1mm-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}