Specification Brand : YWBL-WH BulletPoint1 : This pinion is made of steel and possess higher overall strength than brass or aluminum gears BulletPoint2 : This 30-tooth 6mm D-hole pinion is perfectly matched with 6mm D-shaft, resulting in a positive drive BulletPoint3 : If your configuration can freely adjust the spacing between gears, you can mesh any MOD 0.8 gear that suits you BulletPoint4 : Small spur gear possess stable structure, excellent performance and long service life BulletPoint5 : Using advanced technology with fine craftsmanship to bring smooth face, which will injure your hands in operate ItemName : 30 Tooth 6mm D Bore 0.8 Mod Steel Spur Gear for Hardware Industrial Parts with MOD 0.8 Gears ItemPackageDimensions_Height : 1 centimeters ItemPackageDimensions_Length : 2 centimeters ItemPackageDimensions_Width : 2 centimeters ItemTypeKeyword : spur-gears Manufacturer : YWBL-WH ModelNumber : YWBL-WHa86qrd59xc NumberOfItems : 1 PartNumber : YWBL-WHa86qrd59xc ProductDescription : Spec: Item Type: Spur Gear Material: Steel Model: 4303-1006-0030 Mod: 0.8 Pitch Diameter: Approx. 24mm / 0.9in Outer Diameter: Approx. 25.6mm / 1in D-Bore: Approx. 6mm / 0.2in Size: Approx. 9mm / 0.4in 20mm / 0.8in 3mm / 0.1in 6mm / 0.2in 8mm / 0.3in 13.5mm / 0.5in M5 x 0.8mm Set-Screw Length: Approx. 4mm / 0.2in Hex Drive: Approx. 2.5mm / 0.1in