{"product_id":"sgs-07285-circuit-board-drill-bit-wire-78-solid-carbide","title":"Sgs 07285 Circuit Board Drill Bit Wire 78 Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SGS 07285 is a solid carbide circuit board drill bit designed for precision drilling in printed circuit boards and other small-diameter applications requiring tight tolerances. Sized at wire gauge 78 (0.0160 inches decimal, 0.41 mm), this bit features a 130-degree four-facet point geometry that reduces walking and improves hole entry accuracy. The uncoated solid carbide construction delivers the rigidity and edge retention needed when drilling hard or abrasive materials. With a 1.5-inch overall length and a 0.125-inch (1\/8-inch) shank, it is compatible with standard collet and chuck setups common in CNC drilling and precision hand operations.\u003c\/p\u003e\n\u003cp\u003eThis bit is suited for electronics manufacturing, prototyping, and repair work where small, accurate through-holes are required in rigid or semi-rigid substrates. The two-flute regular spiral design with a 30-degree helix angle promotes chip evacuation during drilling. Approved material applications include aluminum, cast iron, cobalt alloy, copper alloy, fiber-reinforced polymers, nickel, plastics, stainless steel, and titanium, making it a versatile option for machine shops, electronics technicians, and fabricators working across a range of substrate types.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eWire size 78 (0.0160 inches \/ 0.41 mm) for micro-diameter precision drilling\u003c\/li\u003e\n  \u003cli\u003e130-degree four-facet point reduces walking and improves entry accuracy\u003c\/li\u003e\n  \u003cli\u003eSolid carbide construction for rigidity and edge retention in hard materials\u003c\/li\u003e\n  \u003cli\u003eUncoated finish suitable for a wide range of workpiece materials\u003c\/li\u003e\n  \u003cli\u003e1\/8-inch shank diameter fits standard collets and small drill chucks\u003c\/li\u003e\n  \u003cli\u003eTwo-flute regular spiral with tapered web for efficient chip removal\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with materials including aluminum, cast iron, cobalt alloy, copper alloy, fiber-reinforced polymers, nickel, plastics, stainless steel, and titanium. Compatible with any drill press, CNC machine, or hand tool accepting a 0.125-inch (1\/8-inch) round shank.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eSecure the 1\/8-inch shank fully in the collet or chuck before operating to prevent runout. Use appropriate spindle speeds for the workpiece material and bit diameter  -  micro-diameter carbide bits are brittle and prone to breakage if feed rates are excessive or lateral force is applied. Ensure the workpiece is firmly fixtured to prevent movement during drilling. Inspect the cutting edge before each use; carbide bits at this diameter should be replaced rather than resharpened when worn.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire)\u003c\/strong\u003e: 78\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.0160 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (mm)\u003c\/strong\u003e: 0.41 mm\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\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\u003eShank Diameter\u003c\/strong\u003e: 0.1250 inches (1\/8 inch \/ 3.18 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 0.2950 inches (7.49 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\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\u003eDrill Bit Diameter 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\u003eMaterial Application\u003c\/strong\u003e: Aluminum, Cast Iron, Cobalt Alloy, Copper Alloy, Fiber-Reinforced Polymers, Nickel, Plastics, Stainless Steel, Titanium\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.06 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: SGS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 07285\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KYOCERA SGS PRECISION TOOLS","offers":[{"title":"Default Title","offer_id":51742621958450,"sku":"07285","price":16.86,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ab62c9152248a73499206bfc8d0440ad.jpg?v=1788838406","url":"https:\/\/voomisupply.com\/products\/sgs-07285-circuit-board-drill-bit-wire-78-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}