{"product_id":"sgs-07297-circuit-board-drill-bit-0-85-mm-solid-carbide","title":"Sgs 07297 Circuit Board Drill Bit 0.85 Mm Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SGS 07297 is a solid carbide circuit board drill bit engineered for precision drilling in printed circuit board fabrication and other tight-tolerance applications. The bit measures 0.85 mm (0.0335 inches) in diameter with a 1\/8-inch (3.18 mm) shank and an overall length of 1.5 inches (38.10 mm). The 130-degree four-facet point geometry reduces walking and produces clean entry holes in dense or layered materials. A regular spiral with a 30-degree helix angle and tapered web construction promotes efficient chip evacuation. The uncoated solid carbide construction offers high hardness and thermal resistance, making this bit suitable for demanding small-diameter work where consistent hole quality is critical. Installation is performed by qualified machinists or PCB fabrication technicians.\u003c\/p\u003e\u003cp\u003eThis bit is designed for use in CNC drilling machines, PCB drilling equipment, and precision benchtop drill presses where small-diameter, high-accuracy holes are required. Its 0.4-inch (10.16 mm) flute length handles the shallow penetration depths typical of circuit board and thin-stock operations. The two-flute right-hand cut configuration is well suited for production runs on boards and components made from fiber-reinforced polymers, plastics, and non-ferrous metals. It also performs across a broad range of workpiece materials including aluminum, copper alloy, cast iron, stainless steel, cobalt alloy, nickel, and titanium, making it a versatile choice for shops that drill mixed material types.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e0.85 mm (0.0335 inches) diameter with a diameter tolerance of -0.0003 to +0.0000 inches for tight hole accuracy\u003c\/li\u003e\n\u003cli\u003e130-degree four-facet point reduces drill walking and improves hole entry quality\u003c\/li\u003e\n\u003cli\u003eSolid carbide construction delivers hardness and wear resistance for extended tool life\u003c\/li\u003e\n\u003cli\u003e30-degree helix angle with tapered web promotes chip evacuation in shallow-depth drilling\u003c\/li\u003e\n\u003cli\u003e1\/8-inch shank fits standard CNC collets and precision drill chucks\u003c\/li\u003e\n\u003cli\u003eUncoated finish compatible with a wide range of workpiece materials including fiber-reinforced polymers and non-ferrous metals\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a replacement or production-use circuit board drill bit compatible with CNC drilling machines and precision drill presses that accept a 1\/8-inch shank. Suitable for drilling aluminum, cast iron, cobalt alloy, copper alloy, fiber-reinforced polymers, nickel, plastics, stainless steel, and titanium workpieces per the manufacturer material application ratings.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis bit is installed and operated by machinists or PCB fabrication technicians using CNC or manual precision drilling equipment. Secure the 1\/8-inch shank firmly in a properly sized collet or drill chuck before operation and verify runout is within acceptable limits for the application. Always power down and de-energize the machine before changing tooling. Do not exceed the recommended spindle speed for the workpiece material and bit diameter, as solid carbide is brittle and sensitive to side loading.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.85 mm (0.0335 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 130 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Four Facet\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 1\/8 inch (3.18 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.5 inches (38.10 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 0.4 inches (10.16 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpiral Type\u003c\/strong\u003e: Regular\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 30 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered\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\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Grade\u003c\/strong\u003e: Heavy-Duty\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: -0.0003 to +0.0000 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 105\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.1 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: 07297\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KYOCERA SGS PRECISION TOOLS","offers":[{"title":"Default Title","offer_id":51730513887538,"sku":"07297","price":16.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/b18d0912c961ba7161e73e325cebfefb.jpg?v=1788718768","url":"https:\/\/voomisupply.com\/products\/sgs-07297-circuit-board-drill-bit-0-85-mm-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}