Set Power Transmission Parts Coupling Iron Motor Guide Shaft DIY Metal Coupling R11 Rigid Flange

Label:Yes Inner Diameter:3mm,3.17mm,4mm,5mm,6mm,6.35mm Material: 45# steel,hardened by heat treatment, and then electroplated Fixed Hole Distance:26mm Cylindrical Diameter: 10mm; Cylinder Height: 10mm; Overall Height: 12mm; Fixed Hole Screw:M3 Cylindrical Diameter: 18mm; Cylinder Height: 10mm; Overall Height: 13mm; Fixed Hole Screw:M4 Brand new with high quality Cylindrical Diameter: 16mm; Cylinder Height: 10mm; Overall Height: 13mm; Fixed Hole Screw:M4 Inner Diameter:7mm,8mm,10mm,11mm,12mm Fixed Hole Distance:26mm(11mm/12mm/14mm);24mm(others) Fixed Hole Distance:16mm Inner Diameter:14mm Aluminum alloy is light, the top screw is 90 degrees design; 45# steel hardness is high, the top screw is 180 degrees design. If you want to aluminum coupler. Package Include: Coupler x 1 Spanner x 1 Screw x 2 Notice: 1.1cm=10mm=0.39inch. 2.Please allow 1-2mm error due to manual measurement and make sure you do not mind before ordering. 3.Please understand that colors may exist chromatic aberration as the different placement of pictures.