{"product_id":"sumitomo-u101045-screw-machine-drill-bit-0-191-in-carbide","title":"Sumitomo U101045 Screw Machine Drill Bit 0.191 in Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SUMITOMO U101045 is a solid carbide screw machine length drill bit designed for precision drilling in ferrous materials. It measures 0.191 inches (4.85 mm) in diameter with an overall length of 2.5591 inches and a flute length of 0.9843 inches. The 135-degree split point reduces walking and cutting force at entry. The straight-cylindrical shank seats cleanly in standard drill chucks and collet holders. This bit carries a coated finish to improve wear resistance and heat dissipation during high-cycle operations. It is sized within the MDW-GS series range and suited for machinists and tool-room technicians running screw machine operations on cast iron and steel workpieces.\u003c\/p\u003e\n\u003cp\u003eThe U101045 is built for screw machine and short-hole drilling applications on cast iron and steel. The 2xD flute-by-diameter ratio and tapered web geometry support chip evacuation in shallow to moderate depth holes up to 0.6978 inches. Typical install environments include CNC machining centers, turret lathes, and manual drill presses where consistent hole quality and tool life in ferrous stock are priorities. The h8 diameter tolerance ensures dimensional accuracy for close-tolerance bore applications.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide construction provides rigidity and wear resistance in cast iron and steel\u003c\/li\u003e\n  \u003cli\u003e135-degree drill point angle reduces entry deflection and cutting force\u003c\/li\u003e\n  \u003cli\u003eCoated finish extends tool life in high-cycle and abrasive material conditions\u003c\/li\u003e\n  \u003cli\u003eTapered web configuration promotes chip flow and reduces heat buildup\u003c\/li\u003e\n  \u003cli\u003eh8 diameter tolerance supports close-tolerance and precision bore work\u003c\/li\u003e\n  \u003cli\u003eStraight-cylindrical shank compatible with standard collets and drill chucks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in standard straight-shank collet holders and drill chucks accepting a 0.191-inch diameter bit; primary workpiece materials are cast iron and steel as specified by the MDW-GS series designation.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and tool changes should be performed by a qualified machinist with the machine fully de-energized and spindle at rest. Verify collet or chuck runout before seating the bit to maintain h8 tolerance at the bore. Do not exceed the recommended maximum drilling depth of 0.6978 inches without withdrawing to clear chips. Coolant-through is not supported on this bit; apply external coolant or cutting fluid as appropriate to the workpiece material and feed rate.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.191 inches (4.85 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.5591 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 0.9843 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 1.4961 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 0.6978 inches (17.73 mm)\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: 0.0394 inches (1.00 mm)\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 Bit Diameter Tolerance\u003c\/strong\u003e: h8\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Length Type\u003c\/strong\u003e: Screw Machine\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\u003eDrill Bit Size Range\u003c\/strong\u003e: 0.1500 to 0.2000 inches (3.50 to 5.00 mm)\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: 0.05 pounds\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: SUMITOMO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: U101045\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SUMITOMO","offers":[{"title":"Default Title","offer_id":51748656906546,"sku":"U101045","price":109.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/cf1ce03f0f83a2f6fb360746a8fbdf2b.jpg?v=1788896275","url":"https:\/\/voomisupply.com\/products\/sumitomo-u101045-screw-machine-drill-bit-0-191-in-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}