{"product_id":"cleveland-c46151-countersink-1-4-in-82-deg-3-flute-hss","title":"Cleveland C46151 Countersink 1\/4 in 82 Deg 3 Flute Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe CLEVELAND C46151 is a single-end, straight-shank countersink designed for producing clean, accurate countersunk holes in carbon steel and cast iron. It features a 0.250-inch head diameter with an 82-degree included angle and three flutes, delivering smooth chip evacuation and a consistent seat finish. The 3\/16-inch straight-cylindrical shank provides positive clamping in standard drill press and CNC machine chucks. An oxide coating improves lubricity and helps resist wear during repeated use. This tool is sized for machine shop, maintenance, and fabrication work where flush or recessed fastener seating is required.\u003c\/p\u003e\n\u003cp\u003eThe C46151 is suited for countersinking operations on carbon steel and cast iron workpieces in production and job-shop environments. The 82-degree included angle matches the head geometry of most imperial flat-head machine screws and is commonly used in general metalworking and structural fabrication. Its compact 1\/4-inch head diameter makes it appropriate for smaller fastener sizes and tighter clearance applications. Licensed machinists, tool-and-die makers, and maintenance technicians typically reach for this style of countersink in bench drill press, knee mill, and hand-held drill driver setups.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e0.250-inch head diameter with 82-degree included angle for standard flat-head fastener seating\u003c\/li\u003e\n  \u003cli\u003eThree flutes for efficient chip removal and smooth finish on ferrous materials\u003c\/li\u003e\n  \u003cli\u003eHigh-speed steel construction provides hardness and toughness across a range of cutting speeds\u003c\/li\u003e\n  \u003cli\u003eOxide finish improves surface lubricity and corrosion resistance during storage and use\u003c\/li\u003e\n  \u003cli\u003e3\/16-inch straight-cylindrical shank fits standard drill chucks without adapters\u003c\/li\u003e\n  \u003cli\u003eSingle-end design with no pilot — suitable for pre-drilled or pilot-drilled holes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for countersinking operations in carbon steel and cast iron. Suitable for use with standard drill press, milling machine, and hand-held drill driver setups that accept a 3\/16-inch straight shank.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eSecure the shank firmly in the drill chuck before operation and verify the spindle is stopped and locked before making any adjustments. Use appropriate cutting fluid or lubricant when countersinking ferrous materials to extend tool life and improve surface finish. Set spindle speed according to the material and tool diameter — excessive speed generates heat that reduces HSS tool life. Wear appropriate eye protection; chip ejection is a hazard with fluted rotary tools.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Diameter\u003c\/strong\u003e: 0.250 inches (1\/4 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncluded Angle\u003c\/strong\u003e: 82 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCenterline Angle\u003c\/strong\u003e: 41 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 3\/16 inches (0.1875 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Oxide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Type\u003c\/strong\u003e: Single\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePilot\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Carbon Steel, Cast Iron\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: High Speed Steel\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: CLEVELAND\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: C46151\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CLEVELAND CONTROLS","offers":[{"title":"Default Title","offer_id":51695748219186,"sku":"C46151","price":42.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ae62f17db0ffaf033dc208582d276d63.jpg?v=1788337986","url":"https:\/\/voomisupply.com\/products\/cleveland-c46151-countersink-1-4-in-82-deg-3-flute-hss","provider":"Voomi Supply","version":"1.0","type":"link"}