{"product_id":"sumitomo-u101198-jobber-drill-bit-17-32-in-solid-carbide","title":"Sumitomo U101198 Jobber Drill Bit 17\/32 in Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SUMITOMO U101198 is a jobber-length, solid carbide drill bit designed for high-performance metal cutting in demanding shop and production environments. Measuring 17\/32 inch (0.5313 inch) in diameter with a 135-degree split-point geometry, the bit generates less thrust on entry and reduces the need for center-punching. A dual-layer TiAlCr and TiSi coating provides thermal resistance and edge hardness suited to high-speed cutting. Overall length is 5.7874 inches, with a straight-cylindrical shank diameter of 0.5469 inches. This bit is installed by machinists and metalworking tradespeople operating CNC machining centers, drill presses, and manual milling setups.\u003c\/p\u003e\u003cp\u003eThe U101198 belongs to SUMITOMO's MDW-GS series, engineered specifically for cutting cast iron and steel. The 4xD flute-to-diameter ratio and tapered web configuration promote chip evacuation and reduce walking in deep-hole applications. With a flute length of 3.3071 inches and a shank length of 2.4016 inches, the bit fits standard drill chucks and tool holders sized for the 0.5000 to 0.6500 inch diameter range. This is a solid carbide tool without coolant-through capability, suited for dry or flood-coolant external setups.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide construction for rigidity and wear resistance in ferrous metal cutting\u003c\/li\u003e\n\u003cli\u003eTiAlCr and TiSi dual-layer coating for elevated thermal stability and extended tool life\u003c\/li\u003e\n\u003cli\u003e135-degree drill point angle reduces entry thrust and minimizes workpiece deformation\u003c\/li\u003e\n\u003cli\u003eTapered web configuration promotes chip flow and reduces core-loading in deep cuts\u003c\/li\u003e\n\u003cli\u003e4xD flute-by-diameter ratio for effective chip evacuation in steel and cast iron\u003c\/li\u003e\n\u003cli\u003eDiameter tolerance h8 ensures consistent fit in precision tool holders and drill chucks\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in the MDW-GS series, compatible with workpiece materials coded K (cast iron) and P (steel). Fits tool holders and drill chucks accepting straight-cylindrical shanks in the 0.5000 to 0.6500 inch diameter range.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis bit should be installed by a qualified machinist familiar with carbide tooling. Secure the straight-cylindrical shank fully in a matching drill chuck or collet holder before operation. Carbide is brittle — avoid side-loading, interrupted cuts without proper setup, or over-tightening that can crack the shank. Always verify spindle speed and feed rate are appropriate for the workpiece material before starting the cut.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size\u003c\/strong\u003e: 17\/32 inch (0.5313 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 135 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiAlCr and TiSi\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 5.7874 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 3.3071 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.5469 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 2.4016 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute by Diameter Ratio\u003c\/strong\u003e: 4xD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Length\u003c\/strong\u003e: 0.1100 inches (2.79 mm)\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: 0.55 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: U101198\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SUMITOMO","offers":[{"title":"Default Title","offer_id":51753772810546,"sku":"U101198","price":409.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/b48ad56900d715f55b6962b6a4d59d28.jpg?v=1788940545","url":"https:\/\/voomisupply.com\/products\/sumitomo-u101198-jobber-drill-bit-17-32-in-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}