The hexagonal shank has a diagonal diameter of 1/4 inch (6.35mm). The hex socket has strong magnetism. Features: The interface has a locking mechanism, built-in strong magnetic.

Suitable for electric drill, screwdriver, air batch, etc., extend all kinds of batch head, screwdriver head conversion use; Fast and tight; Greatly improve work efficiency.

Special reminder: This extension rod can only be installed a single head of the batch mouth, can not be installed

Double-headed mouth!!

It can be used for the transfer and quick change of imported and domestic 1/4 electric batch, manual electric screw batch, electric drill batch wind batch and other tools.