{"product_id":"sgs-66461-screw-machine-drill-bit-21-64-in-solid-carbide","title":"Sgs 66461 Screw Machine Drill Bit 21\/64 in Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SGS 66461 is a solid carbide screw machine length drill bit designed for high-performance drilling across a wide range of materials. It measures 21\/64 inches (0.3583 inches) in diameter with a 135-degree split point and a Ti-NAMITE-X coating that extends tool life and reduces heat buildup at the cutting edge. The overall length is 3.5 inches with a 1.85-inch spiral flute. The straight-cylindrical shank measures 0.39 inches in diameter and is ground to a web-thinned standard point for improved chip evacuation and reduced thrust force. Licensed trades and machining professionals install this bit in production drilling environments where consistent hole geometry and tool longevity are required.\u003c\/p\u003e\n\u003cp\u003eThe SGS 66461 is suited for use in CNC machining centers, drill presses, and production screw machine setups where shorter overall length provides better rigidity than jobber-length alternatives. The screw machine length format reduces deflection in close-tolerance applications. Rated for universal workpiece materials, it handles steels, aluminum, cast iron, and non-ferrous alloys. The coolant-through design allows internal coolant delivery to the cutting zone, making it a practical choice for high-speed production runs where chip control and thermal management are critical.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide micrograin construction for hardness and wear resistance\u003c\/li\u003e\n  \u003cli\u003eTi-NAMITE-X coating reduces friction and extends cutting life\u003c\/li\u003e\n  \u003cli\u003e135-degree web-thinned split point lowers thrust and improves self-centering\u003c\/li\u003e\n  \u003cli\u003eCoolant-through capability delivers fluid directly to the cutting edge\u003c\/li\u003e\n  \u003cli\u003e4-margin geometry improves hole roundness and surface finish\u003c\/li\u003e\n  \u003cli\u003eScrew machine length (3.5 inches OAL) provides added rigidity over jobber-length bits\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eThe SGS 66461 is a Series 142P screw machine length drill bit rated for universal workpiece materials and is compatible with any spindle or collet system accepting a 0.39-inch straight-cylindrical shank.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis bit is installed and operated by machinists and tool-and-die professionals working with CNC or manual drilling equipment. Ensure the spindle and collet are fully stopped and locked out before changing tooling. Verify shank seating and runout before initiating a cut. When using the coolant-through feature, confirm coolant pressure and flow rate are within the machine specifications before operation.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 21\/64 inches (0.3583 inches \/ 9.10 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.5 inches (89 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 1.85 inches (47 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.39 inches (10.00 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 1.57 inches (40 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: 0.074 inches (1.88 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Margins\u003c\/strong\u003e: 4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral, Regular\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Solid Carbide, Micrograin Grade\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: Ti-NAMITE-X\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Thinning\u003c\/strong\u003e: Web-Thinned\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Standard\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 1.85 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute by Diameter Ratio\u003c\/strong\u003e: 3xD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: +0.00024 to +0.00083 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Universal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpecification\u003c\/strong\u003e: DIN 6537\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 142P\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Length Type\u003c\/strong\u003e: Screw Machine\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.15 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: SGS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 66461\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KYOCERA SGS PRECISION TOOLS","offers":[{"title":"Default Title","offer_id":51731026313522,"sku":"66461","price":315.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d5d57c98681410c1d15544a28a1064dd.jpg?v=1788726040","url":"https:\/\/voomisupply.com\/products\/sgs-66461-screw-machine-drill-bit-21-64-in-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}