Carmex Internal UN Threadmill Insert 14mm/ 20 TPIMill Thread Insert UN 20 TPI, Internal The 14 I 20 UN MT7 Mill Thread Insert is specifically engineered for internal threading of Unified National (UN) profiles on CNC milling machines using helical interpolation. Designed for a 20 TPI thread pitch, this insert is ideal for fine threaded internal applications in a range of mechanical and general purpose components. With an insert size of 14, 7. 5 mm height, and 3. 1 mm thickness, it ensures optimal

HSS Material – Delivers superior strength

absolute/incremental measurement

5D UNF is perfect for professionals and DIY enthusiasts who need an efficient

Range: 5-200mm/0

Part Number: 21524

Crafted from Carmex’s robust MT7 carbide grade

making it a one-stop solution for thread repairs

✔️ UNF fastener compatibility

5 HSS Metric Bottom Tap is engineered for creating full-depth threads in blind holes where maximum thread engagement is required

ensuring durability in tough conditions

while the STI tap ensures precise thread cutting for a perfect fit

✅ Material Removal & Shaping – Perfect for cutting