BIG TPGD080204FN Carbide Precision Turning Insert with FN Chipbreaker R0.4 Corner Radius for Ultra-fine Grain Tungsten Carbide CNC Turning

The TPGD080204FN is high-precision positive rake uncoated or coated carbide finishing insert customized for Swiss automatic lathe and small CNC lathe precision finish turning. Adopting 60° triangular positive TPGD geometry plus FN front sharpened finishing chipbreaker and fine grain carbide substrate, the insert features ultra-low cutting resistance and excellent anti-adhesion performance to keep steady cutting performance in continuous high-speed finish machining of non-ferrous metal and soft steel miniature components.

Optimized FN special rake face and chip groove structure generates fine broken chips and smooth chip evacuation, securing tight dimensional tolerance and superior surface finish for small shaft and thin-wall part mass production.

• Ultra-fine grain tungsten carbide substrate matches optional low-friction coating, outstanding anti-buit-up-edge property for aluminum, copper and mild steel high-speed finishing.
• Specially optimized FN sharp edge chipbreaker splits swarf into tiny fragments to prevent chip winding and workpiece scratching.
• Standard TPGD0802 specification with large positive clearance angle, small cutting load, compatible with dedicated TPGD series small tool holders for gang tool post.
• Precision ground sharp cutting edge reduces post polishing work and improves finished surface roughness efficiently.
• Micro edge honing balances sharpness and chipping resistance, extending service life under long continuous high-feed finishing.

• Aluminum alloy & pure aluminum
• Brass, copper alloy
• Mild carbon steel
• Low hardness stainless steel
• Engineering plastic

• Mini shaft outer diameter precision finish turning
• Micro small bore fine boring
• Sliding head Swiss automatic lathe component processing
• Thin-wall precision part light interrupted finishing
• High requirement small hardware batch turning

Combining large positive rake low-resistance design and professional FN finishing chipbreaker, TPGD080204FN ensures stable high-precision cutting for small precision parts. Its excellent non-ferrous processing performance improves product qualification rate and processing efficiency, becoming cost-effective dedicated finishing insert for automatic lathe precision workshop mass production.