Specification AgeRangeDescription : adult Brand : Xzeit BulletPoint1 : Number of teeth: 16 teeth BulletPoint2 : Modulus: 0.5; Material: brass BulletPoint3 : Inner hole: 2/2.9/3/3.175 mm (tight fit) BulletPoint4 : Tooth thickness: 3/5/6/8 mm BulletPoint5 : After strict manufacturing process, made of high quality brass material, hard and durable, has long service life.Small and light, easy to carry and convenient for installation, has good performance. Color : Hole Thcikness ExternallyAssignedProductIdentifier : 6435659371647 ItemName : Motor Brass Pinion Gear,Tooth Gear, 16 Teeth 3/5/6/8mm Thickness Copper Gears 0.5M 16T 2/3/3.175mm Brass Pinions G-S (Hole Diameter : 2.9mm T6MM, Number of Teeth : Hole Thcikness) ( Color : Hole Thcik ItemPackageDimensions_Height : 1 centimeters ItemPackageDimensions_Length : 3 centimeters ItemPackageDimensions_Width : 2 centimeters ItemPackageQuantity : 1 ItemShape : Square ItemTypeKeyword : worm-gears Manufacturer : Xzeit Material : Brass ModelName : Xzeit ModelNumber : Xzeit NumberOfBoxes : 1 NumberOfItems : 1 PartNumber : Xzeit ProductDescription : Our shop is based on the principle of "service and quality first" and we look forward to welcoming every customer. 16T Copper gear Small module gear is used for toy accessories, for mini cars, for remote control aircraft etc. How to calculate the calculation of gear? (for reference only) Gear module M = outer diameter ÷(number of teeth +2) Outside diameter = Gear module ×(number of teeth +2) Thank you for your visit, any problems can be contacted and resolved in person with the shop! ProductSiteLaunchDate : 2023-11-05T13:23:29.666Z Size : 3mm T5MM UnitCount : 1