A sleeve device for receiving bits comprising:
- a main unit including a sleeve and an engaging member, wherein the sleeve includes an inner periphery defining a receiving space extending along a first axis, wherein the sleeve includes a first end having an open end face intercommunicating with the receiving space, wherein the sleeve further includes a radial hole extending from the inner periphery through an outer periphery of the sleeve in a radial direction perpendicular to the first axis and intercommunicating with the receiving space, wherein a bit is adapted to extend through the open end face into the receiving space, wherein the engaging member extends into the first end of the sleeve and is configured to engage with the bit;
- a fixing member mounted to an end of the receiving space opposite to the open end face;
- a pressing member slideably received in the receiving space, wherein the pressing member is configured to press against the fixing member, wherein the pressing member includes a cylindrical portion, an abutting portion, and a pressing portion, wherein the abutting portion and the pressing portion are disposed on two opposite ends of the cylindrical portion, wherein the abutting portion faces the open end face and is configured to abut the bit;
- a positioning member slideably received in the radial hole, wherein the positioning member is configured to selectively press against an outer periphery of the cylindrical portion or the pressing portion;
- a ring rotatably mounted around the sleeve, wherein the ring includes an inner periphery and a first recessed portion provided on the inner periphery, wherein the inner periphery and the first recessed portion are capable of abutting the positioning member,
- wherein the sleeve device is switchable between a first position and a second position, wherein when the sleeve device is in the first position, the first recessed portion of the ring covers the radial hole, the positioning member is pressed by the first recessed portion to press against the outer periphery of the cylindrical portion of the pressing member, wherein an end of the pressing member adjacent to the pressing portion presses against the fixing member, wherein the abutting portion and the engaging member have a first engagement depth therebetween,
- wherein when the sleeve device is in the second position, the inner periphery of the ring covers the radial hole, the positioning member is pressed by the inner periphery of the ring to press against the pressing portion, wherein the abutting portion and the engaging member have a second engagement depth therebetween, wherein the first engagement depth is larger than the first engagement depth.