{"product_id":"hertel-h-81197120000-cobalt-spotting-drill-0-4724-in","title":"Hertel H-81197120000 Cobalt Spotting Drill 0.4724 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HERTEL H-81197120000 is a cobalt M-35 (HSS-E) spotting drill designed to accurately locate and start holes for subsequent drilling operations. Built with a 90-degree point angle and a 0.4724-inch cutting diameter, this single-ended tool delivers consistent center marks and shallow conical seats in a wide range of metalworking applications. The straight-cylindrical shank measures 0.4724 inches in diameter, allowing direct clamping in standard drill chucks or collet holders. At 6.75 inches overall length with a 1.1875-inch spiral flute, it is suited to CNC machining centers and manual drill presses where rigidity and repeatability are required.\u003c\/p\u003e\n\u003cp\u003eThis spotting drill is intended for general-purpose metalworking in job shop, manufacturing, and maintenance environments. The bright uncoated finish makes it well suited to aluminum, mild steel, and similar materials where a plain high-speed steel surface is preferred. Right-hand cutting direction and web-thinned geometry reduce thrust at entry and improve centering accuracy before a twist drill follows. Machinists and CNC operators typically deploy this tool as the first operation in a multi-step hole-making sequence.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCobalt M-35 (HSS-E) construction provides elevated heat resistance compared to standard high-speed steel\u003c\/li\u003e\n  \u003cli\u003e90-degree drill point angle creates a standard spotting cone compatible with most twist drill point geometries\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned design reduces axial cutting force and improves self-centering at drill entry\u003c\/li\u003e\n  \u003cli\u003eBright uncoated finish suits dry or light-coolant cutting in aluminum and mild steel\u003c\/li\u003e\n  \u003cli\u003eStraight-cylindrical shank at 0.4724 inches diameter fits standard ER and drill-chuck tooling\u003c\/li\u003e\n  \u003cli\u003eTwo-flute spiral configuration promotes chip clearance during short spotting passes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a general-purpose spotting drill for use in CNC machining centers, knee mills, and drill presses equipped with standard straight-shank toolholders or drill chucks accepting a 0.4724-inch shank diameter.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and operation should be performed by a qualified machinist familiar with rotating cutting tools. Ensure the spindle is fully stopped and the machine is powered down or in a safe locked-out state before mounting or removing the tool. Clamp the straight-cylindrical shank to the full recommended grip depth in the toolholder to minimize runout and tool pullout risk. Do not use this spotting drill as a substitute for a center drill in applications requiring a 60-degree seat angle, as the 90-degree geometry is not interchangeable for that purpose.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Diameter\u003c\/strong\u003e: 0.4724 inches (12.00 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 6.75 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 1.1875 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.4724 inches (12.00 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 90 degrees\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\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Thinning\u003c\/strong\u003e: Web Thinned\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Thickness\u003c\/strong\u003e: 0.0470 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Cobalt M-35 (HSS-E)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright\/Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Performance\u003c\/strong\u003e: General Purpose\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSingle\/Double Ended\u003c\/strong\u003e: Single\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.19 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: HERTEL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: H-81197120000\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51737313804594,"sku":"H-81197120000","price":98.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/146a8a2e333dee6ee0fc2d5abea8aa4d.jpg?v=1788786975","url":"https:\/\/voomisupply.com\/products\/hertel-h-81197120000-cobalt-spotting-drill-0-4724-in","provider":"Voomi Supply","version":"1.0","type":"link"}