ITEM NAME:32DP 5mm Motor Gear Pinion 13T 14T 15T 16T 17T 18T 19T 20T 21T fr 1/8 RC Car Description: 32DP 5mm 13T-21T Pinion Motor Gear for 1/8 RC car brushless brushed motor Durable metal construction for long-lasting performance Rust-proof treatment on the surface of gears A M4 set screw has been added to each pinion gear Teeth: 13T 14 T 15T 16T 17T 18T 19T 20T 21T Suitable shaft diameter: 5mm Material: Metal Size Chart: Height: Approx. 14mm/ 0.55inch Tip Diameter 13T: Approx. 11.9mm/ 0.47inch 14T: Approx. 12.7mm/ 0.50inch 15T: Approx. 13.5mm/ 0.53inch 16T: Approx. 14.3mm/ 0.56inch 17T: Approx. 15.1mm/ 0.59inch 18T: Approx. 15.9mm/ 0.63inch 19T: Approx. 16.7mm/ 0.66inch 20T: Approx. 17.5mm/ 0.69inch 21T: Approx. 18.3mm/ 0.72inch Package Includes: 1 Set (9 Pieces) 32DP 5mm 13T-21T Pinion Motor Gear 9 Pieces M4 Screws Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Due to manual measurement, there may be 1-2mm error in size..32DP 5mm 13T-21T Pinion Motor Gear for 1/8 RC car brushless brushed motor. 1 Set (9 Pieces) 32DP 5mm 13T-21T Pinion Motor Gear. Teeth: 13T 14 T 15T 16T 17T 18T 19T 20T 21T. 21T: Approx. 20T: Approx.