{"product_id":"osg-34200108-spiral-point-sti-tap-m2-x-0-4-2-flutes","title":"Osg 34200108 Spiral Point Sti Tap M2 X 0.4 2 Flutes","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 34200108 is a spiral point STI tap designed for cutting internal STI (Screw Thread Insert) metric coarse threads in a variety of materials. Built from vanadium high-speed steel with a V finish, this plug-chamfer tap is engineered for through-hole tapping applications where chip evacuation is critical. It produces M2 x 0.4 threads to a 6H class of fit with a D2 thread limit, making it suitable for precision work in manufacturing, maintenance, and repair environments. The 2-flute spiral point geometry pushes chips ahead of the tap to keep flutes clear during the cut. Licensed machinists, tool-and-die makers, and MRO technicians are the primary users.\u003c\/p\u003e\u003cp\u003eThis tap is used to prepare holes for Heli-Coil-style STI inserts in applications where a standard M2 x 0.4 thread has been stripped or where enhanced thread strength is required from the start. The plug chamfer makes it well-suited for through-hole setups where the tap can pass through the workpiece. Its compact overall length of 1-7\/8 inches and 9\/16 inch thread length make it appropriate for small workpieces and tight clearance situations common in precision assembly and repair work across aerospace, automotive, and general metalworking.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eM2 x 0.4 STI metric coarse thread form for tapping holes that accept screw thread inserts\u003c\/li\u003e\n\u003cli\u003eVanadium high-speed steel construction for improved wear resistance and edge retention\u003c\/li\u003e\n\u003cli\u003eV finish provides a smooth cutting surface suitable for a range of metals\u003c\/li\u003e\n\u003cli\u003ePlug chamfer (3-5 threads) enables clean entry in through-hole applications\u003c\/li\u003e\n\u003cli\u003e2-flute spiral point geometry pushes chips forward to reduce clogging\u003c\/li\u003e\n\u003cli\u003e6H class of fit with D2 thread limit for consistent, tolerance-controlled thread production\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in through-hole tapping operations requiring STI metric coarse M2 x 0.4 threads per the Series 342STI specification. Intended for use with standard STI insert installation tooling and compatible M2 STI Heli-Coil-style insert systems.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis tap is intended for use by machinists and trained metalworking professionals. Always ensure the workpiece is securely clamped and that the correct STI drill size has been used to prepare the hole before tapping. Apply appropriate cutting fluid for the workpiece material to reduce heat and extend tap life. Back the tap out periodically to break chips and reduce torque buildup, even though the spiral point geometry assists with chip evacuation in through-hole operations.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: M2 x 0.4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: STI Metric Coarse\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChamfer Type\u003c\/strong\u003e: Plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass of Fit\u003c\/strong\u003e: 6H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Limit\u003c\/strong\u003e: D2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Vanadium High-Speed Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1-7\/8 inches (46 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 9\/16 inches (6.4 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.1410 inches (3.5814 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Size\u003c\/strong\u003e: 0.1100 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Length\u003c\/strong\u003e: 4.7625 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 342STI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 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: OSG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 34200108\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51741509255474,"sku":"34200108","price":82.22,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/07d3d70be66e77057692604a35a8ae81.jpg?v=1788831930","url":"https:\/\/voomisupply.com\/products\/osg-34200108-spiral-point-sti-tap-m2-x-0-4-2-flutes","provider":"Voomi Supply","version":"1.0","type":"link"}