ITEM NAME:M0.6 3.175mm 18T 19T 20T 21T 22T 0.6 Module Pinion Motor Gear for 1/8 1/10 T9H3 M0.6 3.175mm 18T 19T 20T 21T 22T 0.6 Module Pinion Motor Gear for 1/8 1/10 T9H3 18T-22T pinion motor gears combo Includes set screw Made of high quality material;Durable Aluminum alloy construction for long-lasting performance Rust-proof treatment on the surface of gears For 3.175mm shaft motor of 1/8 1/10 RC off-road buggy monster truck M: 0.6 Teeth: 18T 19T 20T 21T 22T Height: 9mm Tip diameter 18T: 12mm 19T: 12.6mm 20T: 13.2mm 21T: 13.8mm 22T: 14.4mm Suitable shaft diameter: 3.175mm Package List: 1 * M0.6 3.175mm 18T Pinion Motor Gear 1 * M0.6 3.175mm 19T Pinion Motor Gear 1 * M0.6 3.175mm 20T Pinion Motor Gear 1 * M0.6 3.175mm 21T Pinion Motor Gear 1 * M0.6 3.175mm 22T Pinion Motor Gear Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.