{"product_id":"hertel-72300544-chucking-reamer-27-32-in-cobalt-steel","title":"Hertel 72300544 Chucking Reamer 27\/32 in Cobalt Steel","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL 72300544 is a cobalt steel chucking reamer designed to finish-ream drilled or bored holes to precise tolerances. With a 27\/32-inch (0.8438 inches decimal) cutting diameter, a 2-1\/2-inch straight flute length, and a 9-1\/2-inch overall length, this reamer delivers accurate sizing in a single pass. The bright, uncoated cobalt steel construction provides heat resistance and durability when working in tough or work-hardening materials. The straight-cylindrical shank allows direct mounting in standard drill chucks, collets, or floating holders. This tool is installed and operated by machinists and tool-and-die professionals working on precision hole finishing operations in metalworking environments.\u003c\/p\u003e\u003cp\u003eThis chucking reamer is suited for precision reaming operations on ferrous and non-ferrous metals where tight hole tolerances are required. Typical applications include finish-reaming holes in fixtures, jigs, machine components, and structural parts. The right-hand cutting direction and straight flute geometry make it appropriate for through-holes and shallow blind-hole work where chip evacuation is straightforward. Its cobalt steel composition makes it a practical choice for materials that generate elevated cutting temperatures, such as stainless steel and high-strength alloys.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e27\/32-inch (0.8438 inches) cutting diameter for precise hole sizing\u003c\/li\u003e\n\u003cli\u003eCobalt steel construction for heat resistance in tough materials\u003c\/li\u003e\n\u003cli\u003eStraight flute design promotes smooth cutting and chip flow in through-holes\u003c\/li\u003e\n\u003cli\u003eStraight-cylindrical shank for compatibility with standard drill chucks and collets\u003c\/li\u003e\n\u003cli\u003eBright, uncoated finish — no coating buildup to affect dimensional accuracy\u003c\/li\u003e\n\u003cli\u003eRight-hand cutting direction for conventional reaming operations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard chucking reamer for use in drill presses, lathes, milling machines, and CNC machining centers equipped with drill chucks, ER collet systems, or floating reamer holders accepting a straight-cylindrical shank.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eA licensed machinist or toolroom professional should install and operate this reamer in a properly aligned machine spindle. Ensure the workpiece is securely clamped and the machine is at a complete stop before mounting or removing the tool. Use a floating holder when spindle-to-hole alignment cannot be guaranteed to avoid bell-mouthing or oversize conditions. Always apply cutting fluid appropriate for the workpiece material to extend tool life and improve surface finish.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eReamer Diameter\u003c\/strong\u003e: 27\/32 inches (0.8438 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 9-1\/2 inches (10.0000 inches decimal)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 2-1\/2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Straight\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Cobalt Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright\/Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDowel Pin Reamer\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOver\/Under Size Reamer\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.23 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23241611\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: 72300544\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51751317963058,"sku":"72300544","price":276.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/7c0619fafccfe259d61ac48401aa0d8d_ba9b8286-2bec-4b51-b936-bce36d087f5c.jpg?v=1788922819","url":"https:\/\/voomisupply.com\/products\/hertel-72300544-chucking-reamer-27-32-in-cobalt-steel","provider":"Voomi Supply","version":"1.0","type":"link"}