Description: The material of 32DP gear is 45 steel (also known as 0.8M in China), the inner holes are all positive tolerance 0-positive 0.03, M4 fixing screw holes Easy installation & long service life Hard anodized gear surface Anti-rust treatment of gear surface 5mm shaft brushless brush motor for RC model car of 1/8 Specific parameters: Version A1 chrome steel black HRC45-48 32DP 13T ï 5*ï 11.907*14mm Ro HSVersion A1 chrome steel black HRC45-48 32DP 14T ï 5*ï 12.701*14mm Ro HSVersion A1 chrome steel black HRC45-48 32DP 15T ï 5*ï 13.495*14mm Ro HSVersion A1 chrome steel black HRC45-48 32DP 16T ï 5*ï 14.288*14mm Ro HSVersion A1 chrome steel black HRC45-48 32DP 17T ï 5*ï 15.082*14mm Ro HSVersion A1 chrome steel black HRC45-48 32DP 18T ï 5*ï 15.876*14mm Ro HSVersion A1 chrome steel black HRC45-48 32DP 19T ï 5*ï 16.67*14mm Ro HSVersion A1 chrome steel black HRC45-48 32DP 20T ï 5*ï 17.464*14mm Ro HSVersion A1 chrome steel black HRC45-48 32DP 21T ï 5*ï 18.257*14mm Ro HSPackage included:3x gear