ITEM NAME:Best Sale 48DP 3.175mm 38T Motor Pinion Gear for RC Car Brushed Brushless M L5R9 Best Sale 48DP 3.175mm 38T Motor Pinion Gear for RC Car Brushed Brushless M L5R9 Hard anodized on the gear surface Rust-proof treatment on the surface of gears The gears are milled by precisely Tanwai milling machine A M3 set screw(12.9 level)has been added to each pinion gear Teeth:38T(ï ¿ 21*9mm) Diametral pitch: 48 DP Suitable shaft diameter: 3.175mm material:Aluminum alloy colour:Brass color packing include:1 * Motor Pinion Gear 1*Machine meters Screw 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..A M3 set screw(12.9 level)has been added to each pinion gear. Hard anodized on the gear surface.