• material: machined aluminum
• compatible shaft: round or D-shape Ø 3 mm
• outer diameter: Ø 17.5 mm
• thickness: 5 mm
• four mounting holes with through-threads (#2-56)
• shaft clamp with one screw (#4-40)

Note! Includes two discs, an Allen key and three #4-40 headless set screws. Sold in pairs.