{"product_id":"sgs-56028-straight-flute-drill-bit-no-28-solid-carbide","title":"Sgs 56028 Straight-flute Drill Bit No. 28 Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SGS 56028 is a straight-flute drill bit engineered for precision drilling in ferrous and hardened materials. Built from micrograin solid carbide, it carries a No. 28 wire size with a decimal diameter of 0.1405 inches and a 140-degree point angle that centers quickly and reduces thrust in hard workpieces. The two-flute, right-hand cutting geometry pairs with web thinning to improve chip evacuation in tough materials. The bright, uncoated finish leaves the carbide substrate exposed for clean cutting. Machinists and toolroom technicians working on CNC or manual drill press setups install this bit for short-run precision work where dimensional accuracy is critical.\u003c\/p\u003e\n\u003cp\u003eThis drill bit is sized for applications in cast iron, hardened steel, and general steel stock. The 15\/16-inch flute length and maximum drilling depth of 3\/4 inch suit it for shallow, tight-tolerance holes in tool and die work, fixture building, and precision part production. It conforms to DIN 6539 standards, making it a direct fit in shops that specify metric-aligned tooling geometry. The straight-flute design performs well in brittle materials where spiral flutes can cause chatter or micro-fractures at the cutting edge.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eMicrograin solid carbide construction for rigidity and edge retention in hard materials\u003c\/li\u003e\n  \u003cli\u003e140-degree point angle reduces walking and lowers thrust force on entry\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned geometry improves chip clearance and reduces cutting resistance\u003c\/li\u003e\n  \u003cli\u003eStraight-flute design suited for drilling cast iron and brittle materials\u003c\/li\u003e\n  \u003cli\u003eRight-hand cutting direction with uncoated bright finish\u003c\/li\u003e\n  \u003cli\u003eMeets DIN 6539 standard for consistent geometry and interchangeability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard straight-flute carbide drill bit conforming to DIN 6539, compatible with any drill press, CNC machining center, or manual spindle holding a shank diameter of 0.1405 inches. Suitable for use in cast iron, hardened steel, and general steel workpieces as well as other hardened materials.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and use should be performed by qualified machinists or toolroom technicians familiar with carbide tooling. Secure the shank fully in a precision collet or drill chuck before operation and verify runout before drilling. Carbide is brittle and can fracture if subjected to side loads or impact; do not use in hammer or percussion drill applications. Inspect the cutting edges before each use and replace if chipping or wear is observed.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Type\u003c\/strong\u003e: Straight-Flute\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire)\u003c\/strong\u003e: No. 28\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.1405 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 140 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Standard\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Thinning\u003c\/strong\u003e: Web-Thinned\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 0.9375 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.9375 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.1405 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 1.059 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 0.75 inches\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: Uncoated (Bright)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: +0.0000 to -0.0005 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Cast Iron, Hardened Steel, Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSecondary Workpiece Material\u003c\/strong\u003e: Hardened Materials\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 106\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: DIN 6539\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: 56028\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KYOCERA SGS PRECISION TOOLS","offers":[{"title":"Default Title","offer_id":51730319966514,"sku":"56028","price":54.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/026c5c8080c86e74b220ce3eb0ddf3e5_be4d61a0-0401-4ea3-a82f-dcd6a0266a18.jpg?v=1788715303","url":"https:\/\/voomisupply.com\/products\/sgs-56028-straight-flute-drill-bit-no-28-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}