Method and apparatus for attaching and detaching an attachable device

A tool device comprising:

• a detachable tool member having a tool head and an attachment shaft with a locking engagement portion;
• a handle;
• and
• a coupler device fixedly attached to the handle and having a locking structure selectively moveable between locking and release conditions and being carried by a coupler body having an inner wall defining a cavity that is accessible via a cavity aperture and terminating with a terminal wall opposite the cavity aperture, the cavity being dimensioned and shaped to receive the attachment shaft, a first locking member carried by the inner wall for cooperative engagement with the attachment shaft to temporarily move the locking structure to its release condition when the attachment shaft is inserted into the cavity, and a second locking member carried by the inner wall for cooperative engagement with the locking engagement portion and the locking structure when the attachment shaft is inserted substantially into the cavity to accommodate movement of the locking structure to its locking condition to inhibit removal of the shaft from the cavity.