10Pcs 0.4M Brass Gear Spur Pinion Mechanical Small 0.4 Modulus Bore Hole Aperture 2MM 1.98MM 9/10/11/12/13/14/15/16/17/18 Teeth

10Pcs 0.4M Brass Gear Spur Pinion Mechanical Small 0.4 Modulus Bore Hole Aperture 2MM 1.98MM 9/10/11/12/13/14/15/16/17/18 Teeth

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