{"product_id":"cleveland-c91695-solid-pilot-counterbore-0-23-in-3-flute-hss","title":"Cleveland C91695 Solid Pilot Counterbore 0.23 in 3 Flute Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe CLEVELAND C91695 is a solid pilot counterbore designed for precision counter-boring operations in ferrous and alloy materials. It features a 0.23-inch cutting diameter, a 0.135-inch standard pilot diameter, and three flutes for efficient chip evacuation. Constructed from high-speed steel (HSS) with a bright, uncoated finish, it delivers reliable performance in alloy tool steel, carbon steel, and cast iron. The straight-cylindrical shank measures 7\/32 inch in diameter, and the tool runs 3 inches in overall length. It is compatible with Number 6 socket-head cap screws, making it a go-to tool for machinists and maintenance technicians who need clean, accurately sized counterbores for cap screw seating.\u003c\/p\u003e\u003cp\u003eThis counterbore is suited for general metalworking and MRO applications where Number 6 socket-head cap screws must seat flush or below a workpiece surface. Typical installations include machine frames, fixtures, tooling plates, and fabricated steel assemblies. The forward-cutting, three-flute geometry is well-matched to drill press, milling machine, and CNC operations on carbon steel and cast iron workpieces. The standard pilot ensures the counterbore tracks the existing clearance hole without requiring a separate pilot bushing.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e0.23-inch counterbore diameter sized for Number 6 socket-head cap screws\u003c\/li\u003e\n\u003cli\u003e0.135-inch standard pilot diameter for positive hole registration\u003c\/li\u003e\n\u003cli\u003eThree-flute design promotes smooth cutting and chip removal\u003c\/li\u003e\n\u003cli\u003eHigh-speed steel construction handles alloy tool steel, carbon steel, and cast iron\u003c\/li\u003e\n\u003cli\u003eBright uncoated finish — suitable for use with cutting fluid in standard shop conditions\u003c\/li\u003e\n\u003cli\u003eStraight-cylindrical 7\/32-inch shank fits standard drill chucks and collets\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with Number 6 socket-head cap screws. Compatible material applications include alloy tool steel, carbon steel, and cast iron as specified by the manufacturer.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eA licensed machinist or qualified maintenance technician should install and operate this tool. Secure the workpiece firmly before operation and run the counterbore at a speed appropriate for HSS tooling in the workpiece material. Apply a suitable cutting fluid to extend tool life and improve surface finish. Inspect the pilot for wear before each use — a worn pilot can cause counterbore runout and an oversized seat.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCounterbore Diameter\u003c\/strong\u003e: 0.23 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePilot Diameter\u003c\/strong\u003e: 0.135 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 7\/32 inches (0.2188 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: High-Speed Steel\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: Forward\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright\/Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFastener Compatibility\u003c\/strong\u003e: Number 6 Socket-Head Cap Screw\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Alloy Tool Steel, Carbon Steel, Cast Iron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.03 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: CLEVELAND\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: C91695\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CLEVELAND CONTROLS","offers":[{"title":"Default Title","offer_id":51692593381682,"sku":"C91695","price":166.85,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/05c1d49721d593af614852f74082436a.jpg?v=1788299656","url":"https:\/\/voomisupply.com\/products\/cleveland-c91695-solid-pilot-counterbore-0-23-in-3-flute-hss","provider":"Voomi Supply","version":"1.0","type":"link"}