{"product_id":"eagle-cutting-tool-ht-540-b-d-5-40-hss-hand-bottom-tap","title":"Eagle Cutting Tool HT-540-B-D 5-40 Hss Hand Bottom Tap","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe EAGLE CUTTING TOOL HT-540-B-D is a 5-40 thread hand bottom tap ground from high-speed steel (HSS) and manufactured in the USA. Bottom taps are designed to cut threads to the full depth of a blind hole, making them the right choice when thread engagement must extend as close to the bottom of the bore as possible. The short chamfer lead — typically 1 to 2 threads — requires a starter or plug tap to be used first in most blind-hole applications. At 0.04 pounds, this is a compact, precision-ground tap suited for threading in ferrous and non-ferrous metals, plastics, and similar materials.\u003c\/p\u003e\n\u003cp\u003eThe HT-540-B-D is used in machine shops, maintenance and repair operations, and tool rooms where 5-40 UNC threads are required in tight or shallow blind holes. The 5-40 designation means a No. 5 screw size with 40 threads per inch, a common fastener thread found in small instrumentation, electrical enclosures, and light mechanical assemblies. Hand-tap operation is performed with a standard tap wrench and is appropriate for low-volume threading where CNC or power tapping is not required.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e5-40 UNC thread form for small-diameter blind and through-hole applications\u003c\/li\u003e\n  \u003cli\u003eBottom chamfer geometry threads to the base of blind holes\u003c\/li\u003e\n  \u003cli\u003eHigh-speed steel (HSS) construction provides hardness and wear resistance\u003c\/li\u003e\n  \u003cli\u003eUSA manufactured for consistent dimensional accuracy and thread quality\u003c\/li\u003e\n  \u003cli\u003eLightweight at 0.04 pounds — easy handling in tight workspaces\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a hand bottom tap for use in any application requiring 5-40 UNC threads in blind or through holes. Use in sequence with a taper or plug tap when threading blind holes to full depth.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eMachinists and maintenance technicians use this tap with a standard tap wrench or T-handle. Always drill the correct tap drill size for 5-40 threads before tapping, and use appropriate cutting fluid for the material being threaded. In blind-hole applications, clear chips frequently to prevent tap breakage. Do not force the tap against the bottom of the hole — use the plug tap first to establish threads before switching to this bottom tap.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 5-40 UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTap Type\u003c\/strong\u003e: Hand Bottom Tap\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: High-Speed Steel (HSS)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e: USA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.04 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: EAGLE CUTTING TOOL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: HT-540-B-D\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"EAGLE CUTTING TOOL","offers":[{"title":"Default Title","offer_id":51233935491378,"sku":"HT-540-B-D","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/307623013.png?v=1780112570","url":"https:\/\/voomisupply.com\/products\/eagle-cutting-tool-ht-540-b-d-5-40-hss-hand-bottom-tap","provider":"Voomi Supply","version":"1.0","type":"link"}