{"product_id":"hertel-72401987-taper-pin-reamer-3-0-hss-4-flutes","title":"Hertel 72401987 Taper Pin Reamer 3\/0 Hss 4 Flutes","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL 72401987 is a taper pin reamer designed for enlarging, finishing, and shaping tapered holes to accept standard taper pins. Manufactured from high-speed steel with a bright, uncoated finish, this reamer features a spiral flute geometry with right-hand cutting direction and left-hand spiral direction. It measures 2.3125 inches overall length with a 1.3125-inch flute length and a 9\/64-inch (0.1406-inch) square shank. The taper rate is 1:48, consistent with standard taper pin sizing. This tool is intended for use by machinists, tool and die makers, and maintenance technicians working with precision mechanical assemblies.\u003c\/p\u003e\u003cp\u003eThis reamer is suited for general-purpose hole finishing operations on taper pin holes in shafts, collars, and mechanical components. It is sized for the 3\/0 taper pin standard, with a small end diameter of 0.1029 inches and a large end diameter of 0.1302 inches. Typical applications include production machining, repair shops, and maintenance environments where precise taper pin fit and alignment are required. The four-flute spiral design provides smooth cutting action and good chip evacuation in both ferrous and non-ferrous materials.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eHigh-speed steel construction for durability in general-purpose machining applications\u003c\/li\u003e\n\u003cli\u003eSpiral flute design with left-hand spiral and right-hand cut for smooth material removal\u003c\/li\u003e\n\u003cli\u003e1:48 taper rate matches standard taper pin specifications for 3\/0 pin size\u003c\/li\u003e\n\u003cli\u003eSquare shank (9\/64 inch) provides positive drive and secure chuck engagement\u003c\/li\u003e\n\u003cli\u003eBright, uncoated finish suitable for use with cutting fluids in a variety of materials\u003c\/li\u003e\n\u003cli\u003eFour flutes for balanced cutting and consistent hole finish\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in standard 3\/0 taper pin holes with a small end diameter of 0.1029 inches and a large end diameter of 0.1302 inches, following the 1:48 taper pin standard.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eTaper pin reamers are typically used by machinists and maintenance technicians operating drill presses, milling machines, or hand-held power tools with appropriate chucks for square shank tooling. Secure the workpiece firmly before reaming and apply a suitable cutting fluid to extend tool life and improve hole finish. Advance the reamer gradually and avoid excessive feed pressure, which can cause chatter or oversize the hole. Always verify hole size with the appropriate taper pin gauge before pressing or driving the final pin.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTaper Pin Size\u003c\/strong\u003e: 3\/0\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmall End Diameter\u003c\/strong\u003e: 0.1029 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge End Diameter\u003c\/strong\u003e: 0.1302 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.3125 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 1.3125 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.1406 inches (9\/64 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Square\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpiral Direction\u003c\/strong\u003e: Left Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTaper Rate\u003c\/strong\u003e: 1:48\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: High-Speed Steel\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\u003eWeight\u003c\/strong\u003e: 0.15 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23241617\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: 72401987\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51732069482802,"sku":"72401987","price":101.31,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/96c9b14c41fb3efa5b017be4db8e202a_30ef957a-2809-4dd3-984f-63a5935184c3.jpg?v=1788738858","url":"https:\/\/voomisupply.com\/products\/hertel-72401987-taper-pin-reamer-3-0-hss-4-flutes","provider":"Voomi Supply","version":"1.0","type":"link"}