{"product_id":"scientific-cutting-tools-tt290500a-threading-tool-internal","title":"Scientific Cutting Tools TT290500A Threading Tool Internal","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SCIENTIFIC CUTTING TOOLS TT290500A is a solid carbide single point threading tool designed for internal thread cutting operations. It handles a minimum threading diameter of 0.29 inches and covers a range of 12 to 40 threads per inch (TPI), making it suitable for a wide spread of unified and metric-equivalent thread pitches in that range. The tool features a 60-degree profile angle and an AlTiN Plus coating that improves wear resistance and heat tolerance at the cutting edge. With a 0.5 inch cut depth and 0.07 inch projection from edge, it delivers precise thread geometry in bored or drilled internal features. Machinists and tool and die professionals install this tool in CNC lathes and turning centers.\u003c\/p\u003e\u003cp\u003eThis threading tool is suited for internal threading applications on CNC turning equipment in production and job shop environments. It accommodates a broad TPI range, reducing the number of tool changes needed when threading different pitches within the 12 to 40 TPI window. The 5\/16 inch shank diameter fits standard boring bar holders and quick-change tooling systems commonly found on production lathes. It is appropriate for threading ferrous and non-ferrous workpiece materials where a solid carbide substrate and AlTiN Plus finish provide the required edge life and surface quality.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide construction for rigidity and long tool life in interrupted and continuous threading cuts\u003c\/li\u003e\n\u003cli\u003eAlTiN Plus coating enhances heat and oxidation resistance, extending performance in dry or minimal-lubrication cutting\u003c\/li\u003e\n\u003cli\u003e60-degree profile angle cuts standard unified and similar thread forms\u003c\/li\u003e\n\u003cli\u003e12 to 40 TPI range covers a wide variety of internal thread pitches with a single tool\u003c\/li\u003e\n\u003cli\u003e0.29 inch minimum threading diameter allows use in relatively small bored features\u003c\/li\u003e\n\u003cli\u003eNo coolant-through design  -  suitable for external coolant delivery setups\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in CNC lathes and turning centers with toolholders accepting a 5\/16 inch shank diameter for internal threading operations.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and tool changes must be performed by a qualified machinist with the spindle fully stopped and the machine in a safe, locked-out state. Verify that the toolholder bore matches the 5\/16 inch shank diameter and that the tool is secured to the manufacturer-specified clamping method before resuming operation. Do not exceed the cutting depth rating of 0.5 inches. Confirm thread pitch and profile requirements against part drawing callouts before beginning a threading pass.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: Internal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfile Angle\u003c\/strong\u003e: 60 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Threading Diameter\u003c\/strong\u003e: 0.29 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCut Depth\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThreads Per Inch Range\u003c\/strong\u003e: 12 to 40 TPI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 5\/16 inches (0.3125 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProjection from Edge\u003c\/strong\u003e: 0.07 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: AlTiN Plus\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.45 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: SCIENTIFIC CUTTING TOOLS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: TT290500A\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SCIENTIFIC CUTTING TOOLS","offers":[{"title":"Default Title","offer_id":52111452471602,"sku":"TT290500A","price":74.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5d48aa0d2dc360b3970a4d4025528923.jpg?v=1790076960","url":"https:\/\/voomisupply.com\/products\/scientific-cutting-tools-tt290500a-threading-tool-internal","provider":"Voomi Supply","version":"1.0","type":"link"}