{"product_id":"cleveland-c46159-countersink-3-8-in-100-deg-3-flute-hss","title":"Cleveland C46159 Countersink 3\/8 in 100 Deg 3 Flute Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe CLEVELAND C46159 is a single-end, straight-shank countersink designed for deburring and seat preparation in carbon steel and cast iron. It features a 3\/8 inch head diameter, a 100-degree included angle, and three flutes ground from high speed steel with an oxide finish. The right-hand cutting direction and straight cylindrical shank make it compatible with standard drill chucks and countersink holders. This tool is used by machinists, pipefitters, and maintenance tradespeople who need consistent, clean countersink geometry for fastener seating without a pilot. The 1\/4 inch shank diameter allows use in compact chucks and hand-held drilling equipment.\u003c\/p\u003e\n\u003cp\u003eThis countersink is suited for production and repair applications where carbon steel or cast iron workpieces require chamfered holes for flat-head fasteners or deburring of drilled bores. The 100-degree included angle matches the seating geometry of many machine screws and structural fasteners used in fabrication and mechanical assembly. It is a single-unit tool without an included pilot, so the operator controls centering through steady feed and proper fixturing. Typical environments include machine shops, millwright work, and field repair settings where a compact, general-purpose countersink is needed.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e3\/8 inch head diameter with 100-degree included angle for common fastener seating geometry\u003c\/li\u003e\n  \u003cli\u003eThree flutes provide smooth chip evacuation and consistent finish on steel and cast iron\u003c\/li\u003e\n  \u003cli\u003eHigh speed steel construction with oxide coating for wear resistance\u003c\/li\u003e\n  \u003cli\u003e1\/4 inch straight cylindrical shank fits standard drill chucks and countersink holders\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut for use with conventional clockwise-rotation drilling equipment\u003c\/li\u003e\n  \u003cli\u003eNo pilot included, allowing use across a range of pre-drilled hole sizes\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 workpieces. Fits standard 1\/4 inch straight-shank chucks and countersink cage holders used in drill presses, hand drills, and CNC equipment.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eA licensed machinist or qualified tradesperson should secure the shank firmly in the chuck before operation. Ensure the workpiece is clamped or fixtured to prevent movement during cutting. Use appropriate cutting fluid or lubricant when countersinking steel to extend tool life and improve finish quality. Inspect the cutting edges for wear before each use and replace the tool if chipping or dullness is observed.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Diameter\u003c\/strong\u003e: 3\/8 inch (0.3750 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncluded Angle\u003c\/strong\u003e: 100 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCenterline Angle\u003c\/strong\u003e: 50 degrees\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: 1\/4 inch (6.35 mm)\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\u003eMaterial\u003c\/strong\u003e: High Speed Steel\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 Included\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\u003eUNSPSC Code\u003c\/strong\u003e: 27112812\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: C46159\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CLEVELAND CONTROLS","offers":[{"title":"Default Title","offer_id":51714265022770,"sku":"C46159","price":48.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/9e949c0bfb2a954d1166d8eb61da2475.jpg?v=1788498531","url":"https:\/\/voomisupply.com\/products\/cleveland-c46159-countersink-3-8-in-100-deg-3-flute-hss","provider":"Voomi Supply","version":"1.0","type":"link"}