{"product_id":"sgs-56428-solid-carbide-screw-machine-drill-bit-1-2-in","title":"Sgs 56428 Solid Carbide Screw Machine Drill Bit 1\/2 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SGS 56428 is a solid carbide screw machine length drill bit designed for high-performance drilling in a wide range of workpiece materials. It measures 0.5000 inches in diameter with an overall length of 4.2126 inches and features a 137-degree drill point angle for aggressive, centered starts. The carbide substrate is micrograin grade, and the bit carries a proprietary coated finish to support tool life and chip evacuation. With a right-hand cut, regular spiral flute geometry, and web-thinned point, this bit is built for production-level performance in machine shop, manufacturing, and industrial maintenance environments. Two flutes and four margins maintain bore accuracy and surface finish through the full cut depth of 2.3622 inches.\u003c\/p\u003e\n\u003cp\u003eThis drill bit is suited for use in CNC machining centers, drill presses, and screw machine setups where short, rigid tooling is required. The screw machine length profile reduces overhang and deflection compared to jobber-length bits, making it preferred in tight-clearance fixtures and high-feed applications. The straight cylindrical shank seats directly into standard drill chucks or collets. Coolant-through capability allows internal delivery of cutting fluid, extending tool life and supporting chip removal when drilling deep holes in hard or abrasive materials. The Series 142P design follows DIN 6537 specification.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide micrograin construction for hardness and wear resistance in demanding materials\u003c\/li\u003e\n  \u003cli\u003e137-degree drill point angle with web-thinned tip for reduced thrust and accurate entry\u003c\/li\u003e\n  \u003cli\u003eCoolant-through design supports internal fluid delivery for heat management and chip evacuation\u003c\/li\u003e\n  \u003cli\u003eScrew machine length (4.2126 inches OAL) provides rigidity and reduces deflection in machine setups\u003c\/li\u003e\n  \u003cli\u003eFour-margin geometry maintains bore straightness and dimensional accuracy\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut with regular spiral flute; diameter tolerance held to +0.00028 to +0.00098 inches\u003c\/li\u003e\n  \u003cli\u003eConforms to DIN 6537 specification for consistent interchangeability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with standard drill chucks and collet holders accepting a 14.0005 mm straight cylindrical shank; compatible with CNC machining centers, drill presses, and screw machines requiring a 0.5000-inch diameter, screw machine length carbide drill per DIN 6537.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and operation should be performed by qualified machinists or tool-and-die technicians familiar with carbide cutting tools. Ensure the machine spindle is fully stopped and locked out before inserting or removing the bit from any holder. Carbide tooling is brittle and should not be dropped or used to pry; inspect the cutting edges and flutes for chips or cracks before each use. Verify coolant-through connections are secure and flow is confirmed before initiating a drilling cycle.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.5000 inches (12.70 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length (OAL)\u003c\/strong\u003e: 4.2126 inches (107.00 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 2.3622 inches (60.00 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 2.3622 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 14.0005 mm straight cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 1.7717 inches (45.001 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 137 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Point Length\u003c\/strong\u003e: 0.1036 inches (2.63 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\u003eSpiral Type\u003c\/strong\u003e: Regular\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Thinning\u003c\/strong\u003e: Web-thinned\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: Yes\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\/Finish\u003c\/strong\u003e: Proprietary coated\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\u003eFlute-to-Diameter Ratio\u003c\/strong\u003e: 3xD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\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\u003eDrill Length Type\u003c\/strong\u003e: Screw machine\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpecification\u003c\/strong\u003e: DIN 6537\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.3 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: 56428\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KYOCERA SGS PRECISION TOOLS","offers":[{"title":"Default Title","offer_id":51730811453746,"sku":"56428","price":588.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/40bbeb29e008228609ffd6575f2b34e8_ae1a0300-b3e5-4273-b023-285772c3c8d7.jpg?v=1788723231","url":"https:\/\/voomisupply.com\/products\/sgs-56428-solid-carbide-screw-machine-drill-bit-1-2-in","provider":"Voomi Supply","version":"1.0","type":"link"}