{"product_id":"sgs-66628-taper-length-drill-bit-1-8-inch-solid-carbide","title":"Sgs 66628 Taper Length Drill Bit 1\/8 Inch Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SGS 66628 is a taper length drill bit built for high-performance metal cutting and universal material applications. Machined from micrograin solid carbide and finished with a TX coating, this bit delivers extended tool life and thermal resistance in demanding drilling environments. It features a 135-degree split point for reduced thrust and self-centering entry, a web-thinned design for improved chip evacuation, and a right-hand spiral flute configuration. The cylindrical shank measures 5.99 mm in diameter and is compatible with standard chucks. This bit is sold individually and suited for use by machinists, tool-and-die professionals, and precision fabricators.\u003c\/p\u003e\u003cp\u003eThe SGS 66628 is designed for taper-length drilling applications where extended reach beyond a jobber-length bit is required. Its 8xD flute-to-diameter ratio supports deeper hole profiles while maintaining rigidity. The universal material grade makes it applicable across a broad range of workpiece materials. Coolant-through capability allows for internal coolant delivery, supporting chip clearing and heat management during deep-hole operations. This bit conforms to DIN 6537 specification, making it a direct fit for shops that source to DIN standards.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMicrograin solid carbide construction for hardness and wear resistance\u003c\/li\u003e\n\u003cli\u003eTX coating for improved surface hardness and extended tool life\u003c\/li\u003e\n\u003cli\u003e135-degree split point with web thinning reduces thrust and improves hole entry accuracy\u003c\/li\u003e\n\u003cli\u003eCoolant-through design supports internal coolant delivery in deep-hole applications\u003c\/li\u003e\n\u003cli\u003eRight-hand cut, regular spiral flute for effective chip evacuation\u003c\/li\u003e\n\u003cli\u003eConforms to DIN 6537 specification for dimensional consistency\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a high-performance taper length drill bit for use in standard cylindrical-shank tool holders across universal material applications per DIN 6537.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and use should be performed by qualified machinists or toolroom professionals familiar with CNC machining centers or manual drill press setups. Ensure the machine spindle and chuck are powered down and secured before installing or removing the bit. Verify chuck or collet bore is clean and sized to accept the cylindrical shank before clamping. When enabling coolant-through operation, confirm the machine spindle supports internal coolant delivery at the required pressure.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 142P\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 1\/8 inch (0.2047 inches decimal, 5.20 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\u003ePoint Type\u003c\/strong\u003e: Standard, Web-Thinned\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Micrograin Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: TX\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 1-21\/64 inches (57.00 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2-53\/64 inches (95.00 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 5.99 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 1-13\/32 inches (35.99 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Cylindrical, Non-Threaded\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral (Regular)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length x Diameter Ratio\u003c\/strong\u003e: 8xD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 1-21\/64 inches (57.00 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter Tolerance\u003c\/strong\u003e: +0.00016\/+0.00063 inches (+0.004\/+0.016 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Application\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\u003eDrill Bit Grade\u003c\/strong\u003e: High Performance\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\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: 66628\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KYOCERA SGS PRECISION TOOLS","offers":[{"title":"Default Title","offer_id":51749748375858,"sku":"66628","price":413.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/947f6ed78cf4a92e725732e5335ce663_598d8765-d07f-4ce0-b1ec-317d4670a0b7.jpg?v=1788909906","url":"https:\/\/voomisupply.com\/products\/sgs-66628-taper-length-drill-bit-1-8-inch-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}