This M1 17T motor pinion gear is made of hight quality originally alloy steel， which is suit for brushed/brushless motos.<br> <br> Features:<br> The material is originally alloy steel.<br> The gears are milled by precisely Tanwai milling machine.<br> Rust-proof treatment on the surface of gears<br> For 1/8 RC cars.<br> A m4 set screw(12.9 level)has been added to each pinion gear.<br> <br> Specification:<br> Suitable Shaft Diameter: 5.0mm<br> Modulus: 1<br> Teeth: 17T<br> Tip Diameter: 19mm<br> Height: 14mm<br> Material: Aluminum 7075<br> Weight: 13.9g/1pcs<br> Quantity: 2pcs<br> <br> Package size: 9 * 6 * 2cm / 3.5 * 2.4 * 0.8in<br> Package weight: 32.4g / 1.14oz<br> <br> Package list:<br> 2 * M1 17T Motor Pinion Gear<br>  <br>  <br>  <br>  <br>  <br>  <br>  <br>  <br>  <br>  <br>