A replaceable tool is provided, including: a main body, including a connecting hole extending along a first axis; a control member, inserted within the main body and including a detent member, being movable between a locked position and a release position along a second axis lateral to the first axis; wherein when the control member is located in the locked position, the detent member radially protrudes within the connecting hole; when the control member moves from the locked position to the release position, the detent member is away from the first axis.