{"product_id":"hertel-72402050-taper-pin-reamer-size-5-hss-6-flute","title":"Hertel 72402050 Taper Pin Reamer Size 5 Hss 6 Flute","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL 72402050 is a No. 5 taper pin reamer designed for precision hole enlarging, finishing, and shaping of taper pin seats in metal components. Built from high-speed steel (HSS) with a bright, uncoated finish, it delivers consistent cutting performance in general-purpose machining applications. The reamer features six spiral flutes with a left-hand spiral direction and right-hand cutting action, which helps pull chips away from the cutting zone and produces a clean, accurate bore. The small end diameter is 0.2409 inches, the large end diameter is 0.2994 inches, and the taper rate is 1:48 — the standard for taper pin work.\u003c\/p\u003e\u003cp\u003eThis reamer is suited for machine shops, maintenance and repair operations, and toolroom work where taper pin holes must be reamed to precise dimensional tolerances. Typical applications include sizing taper pin holes in shafts, hubs, levers, and mechanical assemblies. It is used with a drill press, milling machine, or hand brace depending on the application. The 5\/16-inch square shank allows secure seating in standard tap wrench or machine tool holders.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eNo. 5 taper pin size with a 1:48 taper rate for standard taper pin fitment\u003c\/li\u003e\n\u003cli\u003eHigh-speed steel construction for durability in ferrous and non-ferrous materials\u003c\/li\u003e\n\u003cli\u003eSix spiral flutes with left-hand helix and right-hand cut for smooth chip evacuation\u003c\/li\u003e\n\u003cli\u003eBright, uncoated finish suitable for general-purpose cutting without added coating thickness\u003c\/li\u003e\n\u003cli\u003eSquare shank for positive drive in tap wrenches and machine holders\u003c\/li\u003e\n\u003cli\u003e2.8125-inch flute length provides adequate cutting depth for typical taper pin hole lengths\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard No. 5 taper pin reamer for use wherever ASME B18.8.2 taper pin hole finishing is required in general-purpose machining and MRO applications.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eA licensed machinist or trained toolroom technician should perform taper pin reaming operations. Power down and lock out all equipment before setting up tooling. Apply cutting fluid appropriate to the workpiece material to extend tool life and improve surface finish. Do not force the reamer through undersize holes — drill or rough-ream to near-final size before finishing with this tool.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTaper Pin Size\u003c\/strong\u003e: 5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmall End Diameter\u003c\/strong\u003e: 0.2409 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge End Diameter\u003c\/strong\u003e: 0.2994 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTaper Rate\u003c\/strong\u003e: 1:48\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4.3125 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 2.8125 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.3125 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: 6\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\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\u003eWeight\u003c\/strong\u003e: 0.15 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: HERTEL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 72402050\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51737620054322,"sku":"72402050","price":88.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/75687c8fa6547e3bc62d8b98e9b2eeae_5a708f20-b3c6-4381-8f18-3f3d97a6a0f0.jpg?v=1788791493","url":"https:\/\/voomisupply.com\/products\/hertel-72402050-taper-pin-reamer-size-5-hss-6-flute","provider":"Voomi Supply","version":"1.0","type":"link"}