{"product_id":"osg-1295600-spiral-point-extension-tap-5-8-11-hss","title":"Osg 1295600 Spiral Point Extension Tap 5\/8-11 Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG 1295600 is a spiral point extension tap designed for threading 5\/8-11 UNC holes in production and maintenance machining environments. Built from high-speed steel with a bright, uncoated finish, this right-hand tap features 3 flutes and a plug chamfer that pushes chips forward ahead of the cutting action, making it well suited for through-hole threading applications. The H3 thread limit provides a controlled fit for 3B class threads. At 6 inches overall length, the extended reach allows operators to thread deeper into workpieces or clearance-restricted fixtures that a standard-length tap cannot access.\u003c\/p\u003e\n\u003cp\u003eThis tap is used in through-hole threading operations across a range of materials including aluminum, carbon steel, cast iron, and hardened steel. The extension length is particularly useful in fixture setups, deep bores, or applications where the tap drive must clear an obstruction before reaching the hole. It is typically run in CNC machining centers, drill presses, or manual tapping equipment. The reduced shank and 0.36-inch square drive allow it to seat in standard tap holders and chucks sized for this shank diameter.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSpiral point design pushes chips forward for clean through-hole threading\u003c\/li\u003e\n  \u003cli\u003eH3 thread limit produces 3B class of fit for standard tolerance threaded fastener assemblies\u003c\/li\u003e\n  \u003cli\u003e6-inch overall length provides extended reach into deep or clearance-restricted workpieces\u003c\/li\u003e\n  \u003cli\u003eHigh-speed steel construction handles aluminum, carbon steel, cast iron, and hardened steel\u003c\/li\u003e\n  \u003cli\u003eReduced shank with 0.36-inch square drive fits standard tap holders for this range\u003c\/li\u003e\n  \u003cli\u003eBright, uncoated finish  -  suitable for use with cutting fluids appropriate to the workpiece material\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for 5\/8-11 UNC through-hole threading operations in aluminum, carbon steel, cast iron, and hardened steel. Compatible with standard tap holders and drive chucks accepting a 0.48-inch shank diameter and 0.36-inch square drive.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis tap should be installed and operated by a qualified machinist or toolroom technician. Ensure the tap holder is properly aligned with the hole axis before engaging to prevent tap breakage and thread damage. Apply a suitable cutting fluid for the workpiece material throughout the tapping operation. Never reverse a spiral point tap under load without first confirming chip clearance in the hole.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 5\/8-11\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClass of Fit\u003c\/strong\u003e: 3B\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Limit\u003c\/strong\u003e: H3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 1-13\/16 inches (1.091 inches decimal)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 6 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNeck Length\u003c\/strong\u003e: 1.562 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.48 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquare Size\u003c\/strong\u003e: 0.36 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquare Length\u003c\/strong\u003e: 0.5625 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChamfer\u003c\/strong\u003e: Plug\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 0 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTap Type\u003c\/strong\u003e: Spiral Point\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReduced Shank\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 917\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: Bright\/Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Aluminum, Carbon Steel, Cast Iron, Hardened Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.3 pounds\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: OSG\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 1295600\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51739678867762,"sku":"1295600","price":127.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/7331c8fafef03e129648dd20edc12ceb.jpg?v=1788817685","url":"https:\/\/voomisupply.com\/products\/osg-1295600-spiral-point-extension-tap-5-8-11-hss","provider":"Voomi Supply","version":"1.0","type":"link"}