Feature(may vary by option.)

●[ Aperture ]: 0.75mm hole ( tightly fitted with 0.8 mm axis )
●[Tooth number]: 7 tooth
●[Outer diameter]: 2.56mm
●[ Thickness ]: 3.9 mm
●[ Modulus ]: 0.3M

[0.8mm Tight 7 Teeth]

Description

[ Aperture ]: 0.75mm hole ( tightly fitted with 0.8 mm axis )
[Tooth number]: 7 tooth
[Outer diameter]: 2.56mm
[ Thickness ]: 3.9 mm
[ Modulus ]: 0.3M