* Precision Grade: JIS B 1704 :1978 grade 4
* Gear Teeth: Gleason
* Module: 1~8
* Pressure Angle: 20º
* Helix Angle: 35º
* Material: S45C
* Tooth Surface Finish: Cut
* Heat Treatment: Teeth induction hardened
* Tooth Hardness: 50~60HRC
* Surface Treatment: Black oxide coating
* Features: Large numbers of teeth and modules are offered in these affordable spiral miter gears