{"product_id":"sgs-66621-4-5-mm-solid-carbide-taper-length-drill-bit","title":"Sgs 66621 4.5 Mm Solid Carbide Taper Length Drill Bit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SGS 66621 is a taper length drill bit engineered for high-performance drilling in demanding shop and field environments. Built from micrograin solid carbide and coated with Ti-NAMITE-X (TX), it delivers exceptional wear resistance and heat dissipation at elevated cutting speeds. The 4.5 mm diameter bit features a 135-degree standard point with web-thinning for reduced thrust and cleaner entry. A right-hand spiral flute with an 8xD flute-to-diameter ratio promotes efficient chip evacuation. Coolant-through capability supports high-speed, deep-hole operations where heat buildup is a concern. This bit is intended for use by machinists, tool-and-die technicians, and production drilling professionals.\u003c\/p\u003e\u003cp\u003eThe SGS 66621 is suited for universal material applications including steel, stainless, cast iron, aluminum, and non-ferrous alloys. Its taper length geometry makes it appropriate for through-hole and deeper-reach drilling where standard-length bits fall short. The straight cylindrical shank fits conventional drill chucks and collet holders without modification. Conforming to DIN 6537 specification, it is compatible with CNC machining centers, drill presses, and manual mills requiring tight-tolerance hole placement.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMicrograin solid carbide construction for extended tool life in hard and abrasive materials\u003c\/li\u003e\n\u003cli\u003eTi-NAMITE-X (TX) coating reduces friction and improves heat resistance at the cutting edge\u003c\/li\u003e\n\u003cli\u003e135-degree standard point with web-thinning lowers entry thrust and improves hole accuracy\u003c\/li\u003e\n\u003cli\u003eCoolant-through design supports deep-hole drilling and high-speed production runs\u003c\/li\u003e\n\u003cli\u003eRight-hand spiral flute at 8xD ratio promotes consistent chip evacuation\u003c\/li\u003e\n\u003cli\u003eConforms to DIN 6537 specification for dimensional and performance consistency\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement and production drill bit for use in standard drill chucks and collet systems accepting a straight cylindrical shank. Conforms to DIN 6537 specification.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and tool changes should be performed by qualified machinists with the machine powered down and locked out per applicable safety procedures. Secure the cylindrical shank firmly in the chuck or collet to the correct clamping torque for the holder type in use. Verify coolant-through supply pressure and flow before running at elevated speeds. Inspect the cutting edge before each use and replace if chipping or wear is observed.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 4.5 mm\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, Micrograin Grade\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: Ti-NAMITE-X (TX)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length (OAL)\u003c\/strong\u003e: 81 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 6-47\/64 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 1-7\/8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral, Regular\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute to Diameter Ratio\u003c\/strong\u003e: 8xD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Type\u003c\/strong\u003e: Standard\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Length\u003c\/strong\u003e: 0.93 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Thinning\u003c\/strong\u003e: Web-Thinned\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: +0.00028 to +0.00098 inches (+0.007 to +0.025 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecification\u003c\/strong\u003e: DIN 6537\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Universal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 142P\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23241600\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: 0.04 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: SGS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 66621\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KYOCERA SGS PRECISION TOOLS","offers":[{"title":"Default Title","offer_id":51738024935730,"sku":"66621","price":408.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/924b6afdd63bfedc367816aa1f148753.jpg?v=1788795714","url":"https:\/\/voomisupply.com\/products\/sgs-66621-4-5-mm-solid-carbide-taper-length-drill-bit","provider":"Voomi Supply","version":"1.0","type":"link"}