2mm Hex Allen Key For Cnc And 3d Printer 55mm x 18mm

Hex Key (also known as Allen Key, Hexagon Key and Socket Key), sizes and its dimensions are used to determine which size hex key is required for use with the applicable fastener depending on the thread size of the fastener. Most common used to install socket screws the dimensions of Allen keys can be used to check the accessibility of your fastener were space is limited.