ITEM NAME:3pcs Gears Motor Gears Without Brush Steel [19T 20T 21T] 48DP RC Car Description: 48DP ï ¿ 3.175mm 19T-21T Pinion Motor Gear Easy installation and long service life, hard anodic oxidation of gear surface, anti rust treatment of gear surface Applies to 1/10 RC model car 5mm shaft brushless brush motors The holes are all positive tolerances, 0-0.03, M3 fixed screw holes Teeth: 19T 20T 21T Material: 45 Steel Size Chart: 19T: ï ¿ 3.175*ï ¿ 11.13*9mm RoHS 20T: ï ¿ 3.175*ï ¿ 11.66*9mm RoHS 21T: ï ¿ 3.175*ï ¿ 12.19*9mm RoHS Package Includes: 1 Piece 48DP 19T Pinion Motor Gear 1 Piece 48DP 20T Pinion Motor Gear 1 Piece 48DP 21T Pinion Motor Gear 3 Pieces M3 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. SKU: DMO0015896161010306.48DP ï ¿ 3.175mm 19T-21T Pinion Motor Gear. 1 Piece 48DP 19T Pinion Motor Gear. 1 Piece 48DP 20T Pinion Motor Gear. 1 Piece 48DP 21T Pinion Motor Gear. Teeth: 19T 20T 21T. 21T: ï ¿ 3.175 ï ¿ 12.19 9mm RoHS. 20T: ï ¿ 3.175 ï ¿ 11.66 9mm RoHS.