{"product_id":"sgs-66521-solid-carbide-jobber-drill-wire-12-135-deg","title":"Sgs 66521 Solid Carbide Jobber Drill Wire 12 135 Deg","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SGS 66521 is a solid carbide jobber-length drill bit designed for high-performance drilling in demanding materials. Built to DIN 6537 standards, it features a 135-degree split point with web thinning to reduce thrust and improve centering on entry. The Ti-NAMITE-X coating extends tool life by increasing surface hardness and reducing friction at the cutting edge. At 3.228 inches overall length with a 1.732-inch flute, the 66521 suits precision drilling applications where carbide rigidity and coating durability matter. It is installed and used by machinists, maintenance technicians, and industrial tradespeople working in ferrous and non-ferrous materials.\u003c\/p\u003e\n\u003cp\u003eThe SGS 66521 fits applications requiring a wire-size 12 drill, equivalent to 4.80 mm or 0.189 inches in diameter. The straight cylindrical shank (6.00 mm diameter) seats into standard drill chucks and CNC toolholders. The 5xD flute-to-diameter ratio and through-coolant capability make this bit well suited to deep-hole drilling operations on machining centers, CNC mills, and drill presses where chip evacuation and heat management are critical. Typical uses include precision hole making in steel, stainless, cast iron, aluminum, and similar materials.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eMicrograin solid carbide construction for rigidity and wear resistance in hard materials\u003c\/li\u003e\n  \u003cli\u003eTi-NAMITE-X coating improves surface hardness and reduces heat buildup at the cutting edge\u003c\/li\u003e\n  \u003cli\u003e135-degree split point with web thinning reduces entry thrust and improves drill walk resistance\u003c\/li\u003e\n  \u003cli\u003eThrough-coolant capable for effective chip evacuation in deep-hole applications\u003c\/li\u003e\n  \u003cli\u003eRight-hand spiral flute geometry in a 5xD ratio supports chip clearing at depth\u003c\/li\u003e\n  \u003cli\u003eDIN 6537 specification ensures dimensional conformance for toolholder compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a DIN 6537 Series 142P jobber drill for use in standard drill chucks and CNC toolholders accepting a 6.00 mm straight cylindrical shank. Wire size 12 fitment covers applications requiring a 0.189-inch or 4.80 mm hole diameter.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and use of this drill bit should be performed by qualified machinists or technicians familiar with cutting tool setup and safe machine operation. Ensure the spindle is fully stopped and the machine is powered down before inserting or removing the tool from the chuck or toolholder. Verify chuck runout is within acceptable limits before use, as excessive runout accelerates wear on carbide tooling. Apply appropriate cutting fluid or coolant when available, particularly when drilling ferrous materials at depth.\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: 12\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter (Decimal Inch)\u003c\/strong\u003e: 0.189 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter (mm)\u003c\/strong\u003e: 4.80 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Material\u003c\/strong\u003e: Solid Carbide (Micrograin)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: Micrograin\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: Ti-NAMITE-X\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\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Thinning\u003c\/strong\u003e: Web-Thinned\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\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\u003eOverall Length\u003c\/strong\u003e: 3.228 inches (82.00 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 1.732 inches (44.00 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.230 inches (6.00 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 1.417 inches (36.00 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 2.205 inches (56.00 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute by Diameter Ratio\u003c\/strong\u003e: 5xD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Point Length\u003c\/strong\u003e: 0.039 inches (0.99 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: +0.00016 to +0.00063 inches (+0.004 to +0.016 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flats\u003c\/strong\u003e: 0\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpecification\u003c\/strong\u003e: DIN 6537\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 142P\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Weight\u003c\/strong\u003e: 0.05 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: 66521\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KYOCERA SGS PRECISION TOOLS","offers":[{"title":"Default Title","offer_id":51755198251314,"sku":"66521","price":267.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/39188b164eebb5a4e2b6d64841dc7a5d.jpg?v=1788952085","url":"https:\/\/voomisupply.com\/products\/sgs-66521-solid-carbide-jobber-drill-wire-12-135-deg","provider":"Voomi Supply","version":"1.0","type":"link"}