{"product_id":"osg-8698400-extra-length-drill-bit-4mm-solid-carbide","title":"Osg 8698400 Extra Length Drill Bit 4mm Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 8698400 is a solid carbide extra length drill bit engineered for precision drilling in demanding metalworking and machining applications. Built to Series 6535 specifications, it features a 4 mm diameter, a 140-degree split point, and an EgiAs coating that reduces friction and extends tool life in high-speed operations. The flute-to-diameter ratio of 15xD gives this bit its extended reach, making it suitable for deep-hole drilling where standard-length bits fall short. Coolant-through capability supports chip evacuation and thermal management at depth. This bit is installed by machinists and tool-and-die professionals in CNC machining centers and precision drilling applications.\u003c\/p\u003e\u003cp\u003eThe 8698400 is designed for right-hand cutting in ferrous and non-ferrous materials where extended reach and tight tolerances are required. Its X-thinned web reduces thrust force at the cutting edge, improving entry performance in harder materials. The straight-cylindrical shank provides consistent grip in standard drill chucks and collet systems. With a 75 mm flute length and 125 mm overall length, this bit is well suited for deep-hole work in production and job-shop environments where standard drill lengths are insufficient.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e4 mm cutting diameter with straight-cylindrical shank of matching 4 mm shank diameter\u003c\/li\u003e\n\u003cli\u003e140-degree point angle for reduced thrust and self-centering entry\u003c\/li\u003e\n\u003cli\u003eEgiAs coating for improved wear resistance and reduced friction\u003c\/li\u003e\n\u003cli\u003eCoolant-through design supports chip evacuation during deep-hole drilling\u003c\/li\u003e\n\u003cli\u003eX-thinned web lowers cutting resistance in harder workpiece materials\u003c\/li\u003e\n\u003cli\u003e15xD flute-to-diameter ratio enables deep-hole drilling beyond standard bit reach\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement and production drill bit for CNC machining centers, drill presses, and multi-spindle equipment accepting 4 mm straight-cylindrical shank tooling.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist following the machine tool manufacturer guidelines. Ensure the spindle is fully stopped and the machine is locked out before changing tooling. Seat the straight-cylindrical shank fully in the collet or chuck and verify runout before initiating the drilling cycle. Activate coolant-through supply before engaging the workpiece to maintain chip evacuation and tool temperature at depth.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 4 mm (0.1575 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length (OAL)\u003c\/strong\u003e: 125 mm (4.921 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 75 mm (2.953 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 4 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 140 degrees\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: EgiAs\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\u003eWeb Thinning\u003c\/strong\u003e: X-Thinned\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute by Diameter Ratio\u003c\/strong\u003e: 15xD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 6535\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Dimensions\u003c\/strong\u003e: 5 inches L x 0.55 inches W x 0.4 inches H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.05 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23241637\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: OSG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 8698400\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51747259875634,"sku":"8698400","price":456.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/0228531b247194f756c1ac6c15804f01.jpg?v=1788878289","url":"https:\/\/voomisupply.com\/products\/osg-8698400-extra-length-drill-bit-4mm-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}