Material: Brass
Color: Yellow
Modulus: 0.5
Weight: 15g
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: 9.7MM/0.38 Inch
Inner Diameter: 4MM/0.16 Inch
Size: 20x9.7x4MM/0.79x0.38x0.16 Inch( H x OD x ID)

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