Description FingerTech Single Mecanum Mount (Aluminum) Offers four holes tapped for 4-40 standoffs Bore: 3 mm Material: Aluminum The FingerTech Single Mecanum Mount (Aluminum) includes 6-32 setscrew. The bore is 3 mm, can be drilled out to accommodate up to 1/4 inch shafts. View more What's Included 1 x FingerTech Single Mecanum Mount (Aluminum) Dimensions Size Large diameter: 1 inch Hub diameter: 0.5 inch Specifications Bore: 3 mm Four holes tapped for 4-40 standoffs Material: Aluminum