{"product_id":"sumitomo-u103735-taper-length-drill-bit-27-64-in-carbide","title":"Sumitomo U103735 Taper Length Drill Bit 27\/64 in Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SUMITOMO U103735 is a taper length drill bit engineered for high-performance drilling in demanding industrial and metalworking applications. Built from solid carbide with a DEX coating, it delivers extended tool life and consistent cutting performance in hard and abrasive materials. The bit measures 27\/64 inch (0.4219 inch decimal) in diameter with a 135-degree split point for accurate self-centering entry and reduced thrust. A J-Flute geometry and coolant-through design support chip evacuation and thermal management during deep-hole operations. This bit is part of the MDW-HGS series and is installed by machinists and tool-and-die professionals on CNC machining centers and drill presses.\u003c\/p\u003e\u003cp\u003eThis drill bit is suited for taper-length drilling operations in ferrous metals, alloys, and other materials where carbide grades outperform high-speed steel. The 8xD flute-to-diameter ratio makes it appropriate for moderately deep holes without the need for peck cycles on many materials. The straight cylindrical shank fits standard collets and drill chucks. Its coolant-through capability makes it a strong match for CNC setups where through-spindle coolant is available, reducing heat buildup and extending edge life in production environments.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide construction with DEX coating for extended wear resistance\u003c\/li\u003e\n\u003cli\u003e135-degree point angle for self-centering entry and reduced walking\u003c\/li\u003e\n\u003cli\u003eJ-Flute geometry promotes efficient chip evacuation\u003c\/li\u003e\n\u003cli\u003eCoolant-through design compatible with through-spindle coolant systems\u003c\/li\u003e\n\u003cli\u003e8xD flute-to-diameter ratio supports moderately deep-hole applications\u003c\/li\u003e\n\u003cli\u003eStraight cylindrical shank fits standard collets and drill chucks\u003c\/li\u003e\n\u003cli\u003eTapered web configuration for added rigidity at the cutting edge\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-specification taper length drill bit in the MDW-HGS series, compatible with CNC machining centers and drill presses equipped with straight-shank toolholders or collets sized for a 0.4375-inch shank diameter.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and setup should be performed by a qualified machinist or tooling technician. Ensure the spindle is fully stopped and locked out before loading or removing the bit from the toolholder. Confirm collet or chuck bore matches the 0.4375-inch shank diameter to prevent runout. When using coolant-through capability, verify that coolant pressure and flow rate are within the machine tool manufacturer's recommended range before starting the cut.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: MDW-HGS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 27\/64 inch (0.4219 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoint Angle\u003c\/strong\u003e: 135 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\/Finish\u003c\/strong\u003e: DEX\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 4.7638 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length (OAL)\u003c\/strong\u003e: 7.1654 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.4375 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 2.4016 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: J-Flute\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length to Diameter Ratio\u003c\/strong\u003e: 8xD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter Tolerance\u003c\/strong\u003e: +0.00000 to -0.00106 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.4 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: SUMITOMO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: U103735\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SUMITOMO","offers":[{"title":"Default Title","offer_id":51733703065906,"sku":"U103735","price":549.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/c8402ed553b77c417b6461dc7174f70a_a2adb788-b275-4077-8e79-ccc4907315f8.jpg?v=1788758514","url":"https:\/\/voomisupply.com\/products\/sumitomo-u103735-taper-length-drill-bit-27-64-in-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}