1、 Custom-designed solid head with added weight and widened housing, offering lifetime replacement if broken.  
2、 Internal gears utilize helical meshing technology for ultra-quiet and stable operation.  
3、 Forged crankshaft, knife seat, custom 55SiCr blades, and M10 enlarged floating gear, resistant to tooth detachment under short-term overload.  
4、 The blade opening is slightly angled upward to reduce oil leakage.  
5、 Thickened housing with side covers embedded into the shell to prevent loosening.