{"product_id":"sgs-66538-solid-carbide-jobber-drill-1-4-in-135-deg","title":"Sgs 66538 Solid Carbide Jobber Drill 1\/4 in 135 Deg","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SGS 66538 is a solid carbide jobber-length drill bit designed for high-performance drilling in demanding materials. Built to DIN 6537 specification, it features a 135-degree split point, Ti-NAMITE-X coating, and web-thinned geometry for fast penetration and reduced thrust. The straight-cylindrical shank measures 0.31 inches in diameter, and the overall length is 3.5827 inches. Coolant-through capability supports deep-hole applications where heat and chip evacuation are critical. This drill is intended for use by machinists, tool-and-die professionals, and skilled tradespeople working with CNC equipment or precision drilling setups.\u003c\/p\u003e\n\u003cp\u003eThe SGS 66538 is suited for production and precision drilling applications in ferrous and non-ferrous metals, hardened steels, and other difficult-to-machine materials. The Series 142P, 5xD flute-to-diameter ratio and micrograin carbide grade make it well matched to CNC machining centers and high-speed drilling stations where tight tolerances and tool life are priorities. The right-hand cutting direction and spiral flute design promote efficient chip removal throughout the flute length of 2.0866 inches.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid micrograin carbide construction for extended tool life in hard and abrasive materials\u003c\/li\u003e\n  \u003cli\u003eTi-NAMITE-X coating reduces friction and heat buildup at the cutting edge\u003c\/li\u003e\n  \u003cli\u003e135-degree split point with web thinning reduces entry thrust and walking tendency\u003c\/li\u003e\n  \u003cli\u003eCoolant-through design supports chip evacuation in deep or blind holes up to 0.9055 inches deep\u003c\/li\u003e\n  \u003cli\u003eStraight-cylindrical shank with 0 flats for secure chuck or collet clamping\u003c\/li\u003e\n  \u003cli\u003eBuilt to DIN 6537 specification with diameter tolerance of +0.00024 to +0.00083 inches\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or direct-fit tool for applications requiring a 1\/4-inch (6.50 mm) jobber drill within the 0.2500 to 0.3000 inch bit size range, conforming to DIN 6537 geometry standards.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and use should be performed by qualified machinists or tradespeople familiar with CNC or manual drill press operation. Ensure the shank is fully seated and secured in the collet or chuck before operation, and confirm coolant lines are connected and flowing before engaging coolant-through mode. Inspect the cutting edge and coating for wear or chipping before each use. Follow applicable shop safety procedures and machine manufacturer guidelines for spindle speed and feed rate selection.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 1\/4 inch (6.50 mm \/ 0.2559 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 135 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Solid Micrograin Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: Ti-NAMITE-X\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.5827 inches (91.00 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 2.0866 inches (53.00 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.31 inches (8.00 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 1.4173 inches (36.00 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 0.9055 inches (23.00 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\u003eDrill Point Length\u003c\/strong\u003e: 0.0530 inches (1.35 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: +0.00024 to +0.00083 inches (+0.006 to +0.021 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Thinning\u003c\/strong\u003e: Web-Thinned\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: Yes\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 Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.1 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: 66538\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KYOCERA SGS PRECISION TOOLS","offers":[{"title":"Default Title","offer_id":51750675644722,"sku":"66538","price":309.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/229a9b9bffe9b91af1386529a45ed933.jpg?v=1788918260","url":"https:\/\/voomisupply.com\/products\/sgs-66538-solid-carbide-jobber-drill-1-4-in-135-deg","provider":"Voomi Supply","version":"1.0","type":"link"}