Item Type: Industrial Robot Parts_x000D_ Material: Brass_x000D_ Product Model: 4301-0006-0030_x000D_ Product Specifications: 6mm Round Hole, Modulus 0.8 _x000D_ Center Hole Diameter: Approx. 6mm / 0.24in_x000D_ Outer Diameter: Approx. 25.6mm / 1.01in_x000D_ Pitch Diameter: Approx. 24mm / 0.94in 1Using high quality brass material, high hardness, durable and long?lasting. 2This 30 tooth, MOD 0.8 gear will mate with any MOD 0.8 gear, a true maker is about integrating and repurposing. 3If D?bore gears just wont fit your motor or axle that you've chosen to use in your project, check out these 6mm round bore gears. 4When building on pattern, the most common partners for this gear are another 30 tooth gear, or a 90 tooth hub gear. 5Utilizing a second 30 tooth gear will create a compact 1:1 ratio on a 24mm center distance.1 x Gear