Material: Brass
Color: Yellow
Modulus: 0.5
Weight: 16g
Size of worm wheel:
Teeth:20
Teeth Dia :11.2MM
Height: 12MM/0.47 Inch
Outer Diameter: 11MM/0.43 Inch
Hole Diameter: 4MM/0.16 Inch
Step Size: 9x7MM/0.35x0.27 Inch ( Dia x H)
Overall Size: 12x11x4MM/0.47x0.39x0.12 Inch( H x OD x ID)
Size of worm gear shaft:
Height: 20MM/0.79 Inch
Outer Diameter :9.8MM/0.39 Inch
Inner Diameter :3.17MM/0.12 Inch
Size: 20x9.8x3.17MM/0.79x0.39x0.12 Inch( H x OD x ID)

1 x worm wheel
1 x worm gear shaft
2 x screws