{"product_id":"sumitomo-u101184-solid-carbide-drill-bit-0-5-in-135","title":"Sumitomo U101184 Solid Carbide Drill Bit 0.5 in 135","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SUMITOMO U101184 is a solid carbide screw machine length drill bit designed for precision drilling in ferrous and cast iron materials. Measuring 0.5 inches in diameter with a 135-degree split point, this bit reduces walking and minimizes the need for a center punch on hard surfaces. The two-flute, tapered-web geometry promotes efficient chip evacuation, while the coated finish extends tool life under high-cycle production conditions. Overall length is 3.937 inches with a flute length of 1.929 inches. It carries an h8 diameter tolerance, making it suitable for close-tolerance bore applications. Machinists and tool-and-die professionals install this bit in CNC machining centers, drill presses, and screw machine setups.\u003c\/p\u003e\u003cp\u003eThis drill bit is suited for production environments where consistent hole quality in cast iron and steel workpieces is required. The screw machine length format provides added rigidity compared to jobber-length bits, reducing deflection in short-reach drilling operations. The straight cylindrical shank seats directly in standard collets and drill chucks without adapters. The MDW-GS series targets general-purpose metal cutting where dimensional accuracy and surface finish matter. Maximum drilling depth is 1.179 inches, which aligns with typical screw machine and short-cycle CNC applications.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide construction for rigidity and wear resistance in steel and cast iron\u003c\/li\u003e\n\u003cli\u003e135-degree drill point angle reduces entry force and minimizes workpiece marking\u003c\/li\u003e\n\u003cli\u003eTapered web design promotes chip flow and reduces heat buildup at the cutting edge\u003c\/li\u003e\n\u003cli\u003eCoated finish extends tool life in high-cycle drilling applications\u003c\/li\u003e\n\u003cli\u003eh8 diameter tolerance supports close-tolerance and precision bore requirements\u003c\/li\u003e\n\u003cli\u003eStraight cylindrical shank fits standard collets and drill chucks without modification\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in CNC machining centers, drill presses, and screw machines accepting a 0.5-inch straight cylindrical shank; primary workpiece materials are cast iron and steel as specified by the manufacturer.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and tool changes should be performed by a qualified machinist with the spindle fully stopped and power isolated from the machine. Secure the shank fully within the collet or chuck to the recommended grip depth before tightening. Do not exceed the maximum drilling depth of 1.179 inches in a single pass without retracting to clear chips. Verify spindle speed and feed rate against the manufacturer cutting data for the target workpiece material before production use.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.937 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 1.929 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 2.008 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 1.179 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 135 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Length\u003c\/strong\u003e: 0.104 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: 2xD\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: Coated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Length Type\u003c\/strong\u003e: Screw Machine\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: h8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Cast Iron, Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: MDW-GS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.52 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: U101184\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SUMITOMO","offers":[{"title":"Default Title","offer_id":51732666908978,"sku":"U101184","price":261.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f71779c06563f023c4bacff3c3aaaec0.jpg?v=1788745519","url":"https:\/\/voomisupply.com\/products\/sumitomo-u101184-solid-carbide-drill-bit-0-5-in-135","provider":"Voomi Supply","version":"1.0","type":"link"}