Size:D25mm x L25mm/0.98inch x 0.98inch, Bore Diameter: 08mm to 12.7mm / 0.31 inch to 0.50 inch
Material: Made of aluminium alloy material, light, anti-oxidant, and anti-corrosive, delicate CNC cut with outstanding appearance, high precision fine workmanship,long service life
Feature: Screw Type(Coiling Clamping),They are not easy to loosen,Main Color: Silver tone
Function: Provides torque transmision and alignment, Cost effective coupling design
Widely Used: Used for transmit motion and widely used in DIY model such as small CNC machines, 3d printer Z shaft coupling , car or boat etc. as connector for different parts as joint connector