Material: 45 steel, hardened by heat treatment, and then electroplated
Inner Diameter: 3mm, 3.17mm, 4mm, 5mm, 6mm, 6.35mm
Cylindrical Diameter: 10mm; Cylinder Height: 10mm; Overall Height: 12mm; Fixed Hole Screw:M3
Fixed Hole Distance: 16mm
Inner Diameter: 7mm, 8mm, 10mm, 11mm, 12mm
Cylindrical Diameter: 16mm; Cylinder Height: 10mm; Overall Height: 13mm; Fixed Hole Screw:M4
Fixed Hole Distance: 26mm(11mm/12mm/14mm); 24mm(others)
Inner Diameter: 14mm
Cylindrical Diameter: 18mm; Cylinder Height: 10mm; Overall Height: 13mm; Fixed Hole Screw:M4
Fixed Hole Distance: 26mm