SODIAL(R) 58 styles Plastic Gears Cog Wheels All The Module 0.5 Robot Parts DIY Necessary Review

SODIAL(R) 58 styles Plastic Gears Cog Wheels All The Module 0.5 Robot Parts DIY Necessary Reviewhttp://tinyurl.com/pkxvsrj SODIAL(R) 58 styles Plastic Gears Cog Wheels All The Module 0.5 Robot Parts DIY Necessary A - Means tight Match(will small 0.05mm than standard)B - Means loose Match(will larger 0.05mm than Standard)Gear Diameter : (Teeth +2) * modulus = Diameter of GearModulus: 0.5Aperture 1.5/2/2.5/3