{"product_id":"eagle-cutting-tool-ht-1228-b-d-12-28-hss-bottom-tap","title":"Eagle Cutting Tool HT-1228-B-D 12-28 Hss Bottom Tap","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe EAGLE CUTTING TOOL HT-1228-B-D is a 12-28 thread hand tap ground from high-speed steel (HSS) and finished as a bottom tap, also called a plug-to-bottom or bottoming tap. It cuts full threads to the bottom of a blind hole, making it the correct choice when thread runout space is limited. At 0.08 pounds, it is a lightweight, precision tool suited for threading operations in metal, plastic, and similar materials. Machinists, pipefitters, and maintenance technicians reach for this tap when a standard taper or plug tap cannot complete the thread to the required depth.\u003c\/p\u003e\u003cp\u003eThis tap is intended for hand-tapping and machine-tapping applications where a 12-28 unified fine thread (UNF) is specified. The 12-28 designation indicates a No. 12 major diameter with 28 threads per inch, a common specification in instrument panels, light fixtures, electrical enclosures, and precision mechanical assemblies. It is manufactured in the USA, which is consistent with tight tolerance requirements found in aerospace, HVAC equipment, and industrial maintenance work.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eBottoming tap geometry cuts threads to the base of blind holes where clearance is minimal\u003c\/li\u003e\n\u003cli\u003e12-28 UNF thread form for precision fastener applications\u003c\/li\u003e\n\u003cli\u003eHigh-speed steel (HSS) construction provides hardness and wear resistance for threading ferrous and non-ferrous metals\u003c\/li\u003e\n\u003cli\u003eUSA manufactured for consistent dimensional tolerances\u003c\/li\u003e\n\u003cli\u003eLightweight at 0.08 pounds for easy handling and portability\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or service tap for any application requiring a 12-28 unified fine thread bottoming tap in HSS.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis tap is installed by a machinist or maintenance technician using a standard tap wrench or tapping head. Always secure the workpiece before beginning the threading operation, and use an appropriate cutting fluid to reduce friction and extend tool life. Apply steady, even torque and back off periodically to break chips, especially in blind holes. Inspect the tap for chipping or wear before each use and replace if cutting edges show damage.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 12-28\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Form\u003c\/strong\u003e: Unified Fine (UNF)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTap Type\u003c\/strong\u003e: Bottom (Bottoming)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: High-Speed Steel (HSS)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.08 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e: USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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-1228-B-D\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"EAGLE CUTTING TOOL","offers":[{"title":"Default Title","offer_id":51233990738226,"sku":"HT-1228-B-D","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/307622566.png?v=1780114232","url":"https:\/\/voomisupply.com\/products\/eagle-cutting-tool-ht-1228-b-d-12-28-hss-bottom-tap","provider":"Voomi Supply","version":"1.0","type":"link"}