Diamond PCD CBN Round Insert Tool Holder For RNGN0903 RNGN32 Three Eighths Turning Milling Tools Cutter For Surfacing Cylinder Heads And Engine Blocks Left Hand EDGEV Compatible High Rigidity 42CrMo Steel

Diamond PCD/CBN Round Tool Holder for RNGN0903 RNGN32 ✔️ Left-Hand, Ø9.525mm (0.375 in), 3.18mm (0.125 in) thick, 42CrMo

This precision tool holder mounts round CBN/PCD inserts for CNC turning and milling, typically used to surface cylinder heads and engine blocks. Built from high-strength 42CrMo steel with integral forging and Nippon-style heat treatment, it delivers steady cutting, long life, and a durable finish thanks to nickel plating.

✅ 42CrMo steel body for high rigidity and long tool life
✅ Integral forging and high-precision CNC/Mazak processing
✅ Slot inspection with 0.01mm feeler gauge ensures snug attachment
✅ Nickel plating provides rust resistance and attractive finish
✅ 7° clearance angle supports efficient cutting with RNGN0903/RNGN32
✅ Left-Hand design oriented for specific setups
✅ Compatible with RNGN0903 and RNGN32 round PCD/CBN inserts
✅ Surface surfacing on cylinder heads and engine blocks

💡 What is a round insert tool holder used for in CNC machining?

- Handy for securing PCD/CBN round inserts during turning and milling
- Improves rigidity and surface finish on engine components like cylinder heads
- Works with RNGN0903/RNGN32 inserts for reliable tool paths