{"product_id":"eagle-cutting-tool-ht-13750-12-p-i-hss-hand-plug-tap","title":"Eagle Cutting Tool HT-13750-12-P-I Hss Hand Plug Tap","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe EAGLE CUTTING TOOL HT-13750-12-P-I is a high-speed steel (HSS) hand plug tap sized for 1-3\/8 inch diameter threads at 12 threads per inch (TPI). A plug tap carries a chamfer of roughly 3 to 5 threads, placing it between a taper and a bottoming tap in the standard tap progression. This chamfer length allows the tool to start cleanly in a drilled hole and cut full threads through most of the depth with moderate hand-tool torque. It is intended for manual threading operations using a tap handle or tap wrench and is not designed for machine-driven applications. Machinists, pipefitters, and maintenance technicians reach for this tap when threading new holes or chasing existing threads in ferrous and non-ferrous metals.\u003c\/p\u003e\n\u003cp\u003eThis tap is suited for through-hole and partial blind-hole threading in shop, field, and maintenance settings. Typical applications include threading bolt-clearance holes in structural steel, machinery frames, and heavy flanges where a 1-3\/8 inch-12 UN thread is specified. The fine 12 TPI pitch provides greater thread engagement strength and finer adjustment compared to the coarse-pitch equivalent, making it a common choice in load-bearing and vibration-sensitive assemblies. The import designation indicates sourcing outside domestic manufacture, offering a cost-effective option for general-purpose threading tasks.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh-speed steel construction provides hardness and wear resistance for threading steel, iron, and aluminum\u003c\/li\u003e\n  \u003cli\u003ePlug chamfer (approximately 3-5 threads) allows easy starting in pre-drilled through holes and shallow blind holes\u003c\/li\u003e\n  \u003cli\u003e1-3\/8 inch diameter, 12 TPI fine-pitch thread form for high thread-engagement strength\u003c\/li\u003e\n  \u003cli\u003eDesigned for manual hand-tap use with a standard tap wrench or T-handle\u003c\/li\u003e\n  \u003cli\u003eMinimum order quantity of 1, suitable for single-unit procurement\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard hand plug tap for 1-3\/8 inch-12 UNF thread form, compatible with matching standard tap wrenches and suitable for use in holes pre-drilled to the correct tap drill diameter for a 1-3\/8-12 thread specification.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eA licensed machinist or qualified tradesperson should verify the correct tap drill size before drilling to ensure proper thread percentage and tool life. Secure the workpiece firmly and use a calibrated tap wrench to apply straight, aligned torque — misalignment is a leading cause of tap breakage on larger-diameter taps. Apply cutting fluid appropriate to the workpiece material throughout the threading operation. Back the tap out periodically to clear chips, especially in blind holes.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1-3\/8 inches - 12 TPI\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Pitch\u003c\/strong\u003e: 12 TPI (fine)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTap Type\u003c\/strong\u003e: Hand Plug 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\u003eWeight\u003c\/strong\u003e: 0.31 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-13750-12-P-I\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"EAGLE CUTTING TOOL","offers":[{"title":"Default Title","offer_id":51233189986610,"sku":"HT-13750-12-P-I","price":109.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/307622654.png?v=1780093661","url":"https:\/\/voomisupply.com\/products\/eagle-cutting-tool-ht-13750-12-p-i-hss-hand-plug-tap","provider":"Voomi Supply","version":"1.0","type":"link"}