{"product_id":"hertel-331-010070-countersink-1-in-90-degree-1-flute","title":"Hertel 331-010070 Countersink 1 in 90 Degree 1 Flute","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL 331-010070 is a single-flute countersink designed for creating conical seat profiles in metal and composite workpieces. It features a 1-inch head diameter, a 90-degree included angle, and a straight-cylindrical shank measuring 0.5 inches in diameter. The bright, uncoated alloy steel construction provides rigidity for controlled material removal. Right-hand cutting direction suits standard machine spindle rotation. This tool is intended for use in drill presses, milling machines, and CNC machining centers by machinists and tool-and-die professionals working in production or maintenance environments.\u003c\/p\u003e\u003cp\u003eThe 331-010070 countersink is suited for countersinking operations in alloy steel, cast iron, and glass-reinforced plastic workpieces. Its single-flute geometry reduces chatter on harder materials and produces a clean, consistent finish on the countersunk seat. The straight-cylindrical shank allows direct chuck mounting without an adapter. It does not include a pilot and is configured as a single-end tool, making it straightforward to set depth with a drill press stop or CNC Z-axis offset.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e1-inch head diameter with 90-degree included angle and 45-degree centerline angle\u003c\/li\u003e\n\u003cli\u003eSingle-flute design minimizes chatter on alloy steel and cast iron\u003c\/li\u003e\n\u003cli\u003eStraight-cylindrical shank at 0.5 inches for direct chuck mounting\u003c\/li\u003e\n\u003cli\u003eBright uncoated finish on alloy steel body\u003c\/li\u003e\n\u003cli\u003eRight-hand cut suits standard spindle rotation\u003c\/li\u003e\n\u003cli\u003eNo pilot required — depth controlled by machine stop or CNC offset\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for countersinking operations in alloy steel, cast iron, and glass-reinforced plastic. Fits any drill press, milling machine, or CNC machining center capable of accepting a 0.5-inch straight-cylindrical shank.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eA licensed machinist or qualified technician should install and operate this tool. Secure the shank firmly in the chuck or collet before starting the spindle. Power down and de-energize the machine before changing tooling. Set depth using a drill press stop or CNC Z-axis offset rather than feeding by feel to avoid overcut on the countersunk seat.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Diameter\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Angle\u003c\/strong\u003e: 90 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCenterline Angle\u003c\/strong\u003e: 45 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.5 inches\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\u003eCoating\/Finish\u003c\/strong\u003e: Bright\/Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Alloy Steel, Cast Iron, Glass-Reinforced Plastic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Type\u003c\/strong\u003e: Single\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes Pilot\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.4 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 27112812\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: 331-010070\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51730737496370,"sku":"331-010070","price":206.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/e1546467a5050eabf39f6033a292e130.jpg?v=1788721977","url":"https:\/\/voomisupply.com\/products\/hertel-331-010070-countersink-1-in-90-degree-1-flute","provider":"Voomi Supply","version":"1.0","type":"link"}